回轉分度車夾具設計和裝配工藝規(guī)劃畢業(yè)設計論文


摘  要
　　　隨著現代計算機技術的高速發(fā)展，高新技術在現代設計中應用的越來越廣泛，如CAD/CAM/CAE等計算機輔助設計方法在國際上應用越來越普遍。這些設計方法不但提高了設計速度，而且設計出來的產品更加可靠美觀，并且可以節(jié)省大量的人力、物力，大大提高產品的競爭力。在生產實際當中，回轉分度盤的應用非常廣泛，它是機床中傳遞力與運動的重要部件。本文是針對數控機床的迅速發(fā)展，應用計算機輔助設計的方法設計一種氣動斜楔式回轉分度盤。
　　　本次設計中，采用三維CAD以及動態(tài)仿真分析等現代設計方法建立了回轉分度盤的實體模型、完成結構裝配及進行裝配仿真，并對三爪動力回轉分度盤的工作原理及其設計計算進行了分析。通過力的平衡方程,得出夾緊力與推拉力的關系。在設計過程中，首先對回轉分度盤的原理方案進行了選定，根據原理進行回轉分度盤的結構設計。然后根據主參數進行回轉分度盤的力學分析，并對回轉分度盤的精度進行了分析。最后，根據結構的設計進行了回轉分度盤的裝配工藝設計及仿真。
　　　裝配工藝規(guī)劃是產品裝配設計的主要內容，是產品生產過程中一個極其重要的環(huán)節(jié), 直接影響到產品的最終質量。因此在回轉分度盤設計中，采用Solidworks軟件，進行建模仿真，根據回轉分度盤的結構裝配制定出裝配工藝。
　　　
關鍵詞：回轉分度盤；裝配工藝；動態(tài)仿真；Solidworks
　　　
　　　
　　　
　　　

Rotary indexing fixture design and assembly process planning
Abstract
　　　With the rapid development of modern computer technology, high-tech applications in modern design more and more extensive computer-aided design methods such as CAD / CAM / CAE applications in the international arena is becoming increasingly common. These design methods not only improve the design speed, and design products more reliable and beautiful, and can save a lot of manpower, material, greatly improving the competitiveness of their products. In which the actual production, rotary indexing plate is widely used, it is an important component of the force and motion passed in the machine. This article is for the rapid development of CNC machine tools, the application of computer-aided design methods to design a pneumatic wedge rotary indexing plate.
     In this design, the use of 3D CAD, as well as dynamic simulation analysis of modern design methods to establish a solid model of the rotary indexing plate to complete the structural assembly and assembly simulation, and three-jaw power rotary indexing plate working principle and design calculations were analyzed. Through the force balance equation, draw the clamping force and the push pull relationship. In the design process, the first principle of rotary indexing plate program selected according to the principles of structural design of rotary indexing plate. And mechanical analysis of the main parameters of rotary indexing plate, and the accuracy of rotary indexing plate is analyzed. Finally, according to the design of the structure of a rotary indexing plate assembly process design and simulation.
    Assembly process planning is the main content of the product assembly design, is an extremely important link in the production process, a direct impact on the final quality of the product. Rotary indexing plate design using Solidworks software, modeling and simulation to develop a structural assembly of the rotary indexing plate assembly process.

Key Words: Rotary indexing;assembly process; Solidworks

目  錄

1  緒論 1
1.1前言 1
1.2 夾具的概況 2
1.3國內外研究 3
1.4本文主要研究內容 5
2  回轉分度盤形式的選擇及原理的確定 6
2.1回轉分度盤的性能確定 6
2.1.1回轉分度盤結構設計原則 6
2.1.2回轉分度盤性能及參數的確定 6
2.2 回轉分度盤原理確定 7
3  回轉分度盤方案設計 11
3.1設計工具的選擇 11
3.1.1造型功能 11
3.1.2繪圖功能 12
3.1.3裝配功能 12
3.2回轉分度盤方案的設計 12
4  回轉分度盤主要零部件的結構設計 15
4.1傳力裝置零件的結構設計 15
4.1.1過渡盤的結構設計 15
4.1.2盤體的結構設計 16
4.1.3回轉盤的結構設計 17
4.2定位、夾緊裝置、平衡零件的結構設計 18
5  回轉分度盤的計算分析 20
5.1夾緊力的分析與計算 20
5.1.1夾緊力的分析 20
5.1.2.切削力計算 20
5.1.3夾緊力計算 21
5.2回轉分度盤的定位及精度分析 22
5.2.1工件的定位 22
5.2.2定位誤差分析 23
5.2.3分度精度分析 23
6  回轉分度盤的裝配工藝設計與仿真 25
6.1裝配的基本概念 25
6.2回轉分度盤的裝配 26
6.3回轉分度盤的裝配工藝規(guī)劃 27
6.3.1回轉分度盤裝配流程 27
6.3.2裝配工藝過程 27
6.4裝配運動仿真 29
6.4.1裝配仿真的概念 29
6.4.2產品裝配仿真的實現 30
6.4.3裝配后操作 30
6.5回轉分度盤的運動演示 31
6.5.1動態(tài)爆炸視圖 31
6.5.2回轉分度盤運動演示 34
7  結論 36
參考文獻 38
致 謝 40