汽車主線夾具舉升裝置的設計

機械論文編號:JX040  論文字數:12754,頁數:36

本份資料包括以下內容

目  錄

第一章 前言 1
1.1 汽車設備行業概述 1
1.2 國內外發展現狀 1
1.3 設計簡介 2
1.4設計任務及進度要求 2
第二章 系 統 結 構 設 計 3
2.1系統結構分析 3
2.2舉升系統的滑車[1] 3
2.3 舉升系統 4
2.3.1 功能與工作原理[1~2] 4
2.3.2 軸1及連接軸[3~4] 4
2.4  軌道[1] 8
2.5導向 9
2.6定位 9
2.7升降架 10
第三章  氣壓系統[5~7][11] 11
3.1 氣壓傳動 11
3.1.1工作原理和組成 11
3.1.2 氣壓傳動的優點及缺點 11
3.1.3氣動元件 12
3.1.4氣動執行元件 12
3.1.5氣壓系統的組成回路 13
3.1.6 氣缸的設計計算[5] 14
3.2螺紋聯結[4] 16
3.2.1螺紋聯接的預緊 17
3.2.2螺紋聯接的防松 18
3.2.3壓板與升降架之間螺紋聯接的計算 19
第四章  齒輪齒條傳動系統[8~10] 21
4.1齒輪機構的傳動特點及要求 21
4.2齒輪齒條機構分析和類型 21
4.2.1齒輪齒條材料的選擇 21
4.2.2齒輪齒條機構的組成及設計計算[8][10] 22
結論 29
謝  辭 30
參考文獻 31

摘  要

舉升裝置的首要任務是在工件焊接完畢后將焊接后的工件托起，使其離開夾具，以便將工件移走。它是配合線上夾具來工作的，用于支撐線上各工位的軌道及軌道上的工件等設備，要求在限定的空間內完成舉起和降下的動作。汽車主線夾具舉升裝置是由氣壓系統，齒輪齒條傳動系統，升降架，軌道，BASE板等幾部分組成的。
設計中的舉升裝置需要舉升的重量大約是762.2kg，要求可以舉升的范圍是0~400mm。根據車體的需要，鋪設了兩條相距400mm的固定軌道，承載的設備可以在軌道上來回滑動。設計過程中要注意保證舉升平臺的平衡和平穩，為了滿足這個需要，我們采用了齒輪齒條傳動，齒條采用了導向齒條軸的結構。這樣不僅使動作協調一致，還能充分保證舉升的平穩性和可靠性。
氣壓系統是整個系統的動作能源。為了保證車體的順利舉升，根據所舉升的重量，通過計算，選擇氣缸的缸徑和行程。
目前，該設備正在不斷完善、改善中，使其性能更優越，以達到國內領先水平，國外先進水平，逐步占領國內市場，最終打入國外市場。
關鍵詞：舉升裝置 氣壓系統 齒輪齒條傳動系統

ABSTRACT

The all-important task of the lift equipment is that it is to stipule the jointed work pieces after they have been jointed. It makes the work pieces leave the jig and convenient to move away from jigs. It works to work in the jigs of product line. It is used to underlay the orbits, work pieces on orbits and other equipment of every work position. It requests the equipment to completes the action of lifting and descending. This lift equipment is composed of air pressure system, gear and rack drive system, lift shelf, orbits, BASE board and other parts.
  In this design, the lift equipment need to lift about 762.2kg’s weight and the range it need to lift is 0~400mm. It has two orbits, which are away from 400mm, which based on the need of the bodywork’s shape and size. Besides, the bodywork can slippage on the orbits to and fro on the pulley. Between the process of design, we should assure that the lift flat roof is balanceable and smooth. For shake of meeting this need, we adopt gear and rack drive system, and the rake is the machinery of oriented axes. In this way, the lift equipment’s action is accordant, and it can assure the placidity and reliability of lifting.
 air pressure system is the action energy sources of the whole system. For the shake of assuring the lift of the work body favoring, we need choose the diameter and journey of the air pressure crocks basing the lift weight and the result of calculation.
At the present time, this equipment is being perfected and improved which make the capability more predominant. Doing these is for achieving one-up level in home and advanced level in foreign countries, and occupy domestic market gradually. In the end, it can come into the foreign markets.
Key words: lift equipment, air pressure system, gear and rack drive system