畢業(yè)設(shè)計（論文）小型焊接滾輪架的工程設(shè)計


摘    要
焊接裝備就是在焊接生產(chǎn)中與焊接工序相配合，有利于實現(xiàn)焊接生產(chǎn)機械化，自動化，有利于提高裝配焊接質(zhì)量，促使焊接生產(chǎn)過程加速進行的各種輔助裝置和設(shè)備。焊接滾輪架是借助主動滾輪與焊件之間的摩接力帶動焊接旋轉(zhuǎn)的變位機械。焊接滾輪架主要用于筒形焊件的裝配與焊接。焊接滾輪架按結(jié)構(gòu)形式分為兩類：第一類是長軸式滾輪架。第二類是組合式滾輪架。本文主要對組合式小型焊接滾輪架進行設(shè)計，并對軸、鍵等主要構(gòu)件進行了校核。結(jié)果表明各主要部件符合要求。該滾輪架結(jié)構(gòu)簡單，使用方便靈活，對焊件的適應(yīng)性很強。設(shè)計中充分的考慮了滾輪架的合理性和經(jīng)濟性等因素。

關(guān)鍵詞：焊接  工裝夾具  滾輪架

Small welding roller stand
Abstract
Welding equipment is a machine which is used in welding production and welding processes, and it is conducive to welding production mechanization and automation, to improving assembly welding-quality. Then it could prompte to speed up the process of welding production of the various assistive devices and equipment. Welding roller is used initiative and welding pieces of the wheel between the Mount relay driven welding rotating mechanical deformation. Welding roller stands for the main pieces of tube welding and welding assembly. Welding roller standing by structural form is divided into two categories : the first category is long axis-wheel frame., the second category is modular roller frame. In this paper, 4000kg of modular T-welded wheel for the design, as well as axial, bond and other main component of checking. The results showed that the main components to meet the requirements. The roller frame structure is simple, flexible, adaptive welded pieces of a strong, which is the most widely used form of the structure. And it could be fully considered the roller frame reasonable and economic, and other factors.

Key Words：weld; frock clamp; turning rolls

目  錄
1. 方案的選擇與確定 1
1.1滾輪架簡介 1
1.2滾輪架結(jié)構(gòu)特點 1
1.3焊接滾輪架的設(shè)計： 1
1.4組合式滾輪架特點 3
1.5結(jié)構(gòu)設(shè)計 4
1.6關(guān)于滾輪架軸向竄動的問題 5
1.7傳動方案設(shè)計 6
2. 焊接滾輪架的設(shè)計與計算 8
2.1焊接滾輪架主要技術(shù)參數(shù)： 8
2.2計算總傳動效率 8
2.3無級變速器的選用： 8
2.4減速器的選擇： 8
2.5聯(lián)軸器的選擇 9
2.6滾輪架滾輪的設(shè)計 11
2.7軸的結(jié)構(gòu)設(shè)計 11
2.8軸承的選擇 12
2.9軸承端蓋的設(shè)計 13
2.10絲桿的設(shè)計 14
2.11鍵的設(shè)計 15
2.12機架的設(shè)計 15
2.13表面粗糙度的計算 16
2.14驅(qū)動圓周力與摩擦阻力的計算： 17
2.15滾輪支反力的計算 18
2.16驅(qū)動圓周力與支反力的分析及中心角的確定 19
2.17滾輪軸上載荷與驅(qū)動功率的計算 22
2.18附著力的計算 23
2.19軸承壽命的計算 24
2.20軸承的強度計算： 25
2.21電動機的選型 26
2.22普通圓柱蝸桿傳動主要參數(shù)及幾何尺寸計算 27
2.22.1模數(shù)m和壓力角a 27
2.22.2蝸桿的分度圓直徑  27
2.22.3蝸桿頭數(shù)  27
2.22.4導(dǎo)程角Y 27
2.22.5傳動比i和齒數(shù)比u 28
2.22.6蝸輪齒數(shù)  28
2.22.7蝸桿傳動的標準中心距a 28
2.23軸的校核 30
2.24焊接滾輪架的底架設(shè)計 30
結(jié)語 31
致謝 32
參考文獻 33