减震器筒整形冲孔一体机的设计与研究

发布时间：2018-05-18 01:06

本文选题：减震器筒 + ANSYS/LS—DYNA　；参考：《辽宁工业大学》2014年硕士论文

【摘要】：本文主要针对减震器筒的外形修整和安装孔加工展开研究。在传统的筒加工中，减震器筒的加工主要是采用冲床进行加工，这样的加工方式不仅加工效率较低，而且加工质量很难达到要求、难以确定较好的加工参数。本文采用新的加工方法，解决了传统加工的不足之处，并且结合了塑性成型和冲压加工技术的国内外发展最新趋势和现代化数字技术，展开了整形冲孔一体机的设计及其关键技术的研究，旨在使一体机具备节能、高效的特点。本文首先采用了气、液相结合的方式对整形冲孔一体机进行了设计，拟定了液压和气压原理图，完成了设备的工位设计、结构设计和整机设计，初步确定了设备的主要加工参数。为了确定减震器筒加工设备的加工参数，实现快速、高效率、高加工质量的目标，本文采用ANSYS/LS—DYNA对冲孔全过程进行数值模拟，，得到了工件隆起处最大位移和冲裁力与冲头进给速度的关系曲线，合理确定了冲孔加工的冲头进给速度、确切的冲裁力等主要技术参数；为了实现一体机的液压系统需要满足大载荷、大冲击的功能，保证加工稳定、可靠，设计过程中将ANSYS/LS—DYNA数值模拟得到的冲裁力运用到冲孔工位的液压系统设计中，使液压系统的设计更加精确、可靠。考虑到一体机的稳定性和安全性，本文结合ANSYS/LS—DYNA对冲孔过程的数值模拟结果和ANSYS/Fatigue tool模块对不同表面处理的冲头进行疲劳寿命的预测，得到不同表面处理的冲头的预期疲劳寿命。最后，文本利用SolidWorks提供的3D Meeting和3D Instant Website两个模块构建了协同设计平台，为用户提供了各部门高效协作、协同设计的协同设计环境。一体机的设计克服了传统减震器筒加工方法的不足，并且结合现代数字化技术使整形冲孔一体机的设计更加可靠，使减震器筒的加工效率更高、加工质量更好，为传统企业设备的升级换代开辟了渠道，减少了企业设计成本，并且保证了生产设备的可靠性和产品加工的质量。本文研究的加工方法和工艺参数确定方法对其它孔加工设备具有借鉴和参考价值。
[Abstract]:This paper mainly focuses on the shape dressing of shock absorber cylinder and the machining of installation hole. In the traditional cylinder machining, the shock absorber barrel is mainly processed by punching machine. This kind of processing method is not only low efficiency, but also difficult to meet the requirements of processing quality, so it is difficult to determine the better processing parameters. In this paper, the new processing method is adopted to solve the shortcomings of traditional machining, and the latest development trend of plastic forming and stamping technology and the modern digital technology are combined. In this paper, the design and key technology of the integrated shaping punching machine are studied. The purpose of this paper is to make the integrated machine have the characteristics of energy saving and high efficiency. In this paper, the integrated shaping punching machine is designed by the combination of gas and liquid at first, and the hydraulic and pneumatic schematic diagram is drawn up. The work station design, the structure design and the whole machine design of the equipment are completed. The main processing parameters of the equipment were preliminarily determined. In order to determine the machining parameters of shock absorber barrel and realize the goal of fast, high efficiency and high machining quality, this paper uses ANSYS/LS-DYNA to simulate the whole process of punching. The relation curves between the maximum displacement and blanking force and the feed speed of the punch are obtained, and the main technical parameters, such as the feed speed of the punch head and the exact punching force, are reasonably determined. In order to realize the hydraulic system of the integrated machine, it is necessary to satisfy the functions of large load and large impact, and to ensure the stability and reliability of machining. In the design process, the blanking force obtained by ANSYS/LS-DYNA numerical simulation is applied to the hydraulic system design of the punching station. The design of hydraulic system is more accurate and reliable. Considering the stability and safety of the integrated machine, this paper combines the numerical simulation results of ANSYS/LS-DYNA and the ANSYS/Fatigue tool module to predict the fatigue life of the punches with different surface treatments. The expected fatigue life of punches with different surface treatments was obtained. Finally, the paper constructs a collaborative design platform based on 3D Meeting and 3D Instant Website provided by SolidWorks, which provides a collaborative design environment for users. The design of the integrated machine overcomes the shortcomings of the traditional processing method of the shock absorber, and combines the modern digital technology to make the design of the integral machine of shaping and punching more reliable, so that the processing efficiency of the shock absorber tube is higher and the machining quality is better. It opens up the channel for the upgrading of the traditional enterprise equipment, reduces the design cost of the enterprise, and ensures the reliability of the production equipment and the quality of the product processing. The processing method and process parameter determination method studied in this paper have reference and reference value for other hole processing equipment.
【学位授予单位】：辽宁工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TB535.1

【参考文献】