论文总字数：32760字

摘 要

1.以满足实际生产需要为出发点，对现有玻璃模具等离子焊接工艺进行研究，综合分析了等离子焊接工作流程，拟定了玻璃模具等离子焊接自动生产线的设计方案。

2.根据玻璃模具等离子焊接工艺流程，对玻璃模具等离子焊接自动生产线总体设计方案进行研究与分析，结合实际生产需要，确定了组成该生产线的七大装置，完成了除炉体外其他装置的参数选择和结构设计。主要包括：针对玻璃模具多品种、小批量的生产模式及其自重较大的特点，设计了重载通用机械手上料装置；根据等离子焊接工艺要求，利用送料小车和托盘，设计了炉底循环装置，实现了玻璃模具进出炉体的功能；针对出炉后的高温工件，设计了可平稳输送高温工件的送料装置和下料装置。

3.对七大装置的关键零件进行校核，根据计算结果对各装置结构进行修改和完善。利用SolidWorks对生产线进行三维建模，完成工程图绘制，为本次设计的玻璃模具等离子焊自动生产线后续的改进完善以及以后的试验运行和工业化应用奠定了基础。

关键词：玻璃模具，等离子焊，自动生产线，机械手，高温自动送料

External Circulation and Manipulator Feeding Device Design of Plasma Welding Automatic Production Line for Glass Mold

02011415 Dongdong Li

Supervised by Fang Jia

Abstract: In recent years, glass mold industry has been rapidly developing in our country, and plasma welding, as the key technology for glass mold production, has earned widespread applications in the industry. Glass mold plasma welding process in China, however, is generally achieved through the traditional manually-operated and single-station plasma welding machine, wherein multiple problems exist, which seriously restricts the development of glass mold industry in our country, consequently, it is of great engineering significance and application value to research into the automation degree improvement of the plasma welding production line of glass mold. Aimed at this, the plasma welding equipment is thoroughly studied, and through combination with the relevant knowledge of automatic production line, the concrete parameters and the structural solution of the external circulation of the plasma welding automatic production line and the manipulator feeding device of the glass mold are presented.

1. With the satisfaction of actual production as a starting point, the existing plasma welding process of glass mold is researched, the plasma welding workflow is comprehensively analyzed, and the design scheme of the plasma welding automatic production line of glass mold is eventually drafted.

2. In accordance with the plasma welding workflow of glass mold, the overall design scheme of the plasma welding automatic production line is researched and analyzed, and based on the actual production needs, seven devices composing the production line are determined, subsequently, the parameter selection and structural design of the devices (the furnace body excluded) are eventually completed, which mainly included: first, in view of the multi-varieties and small-batch production mode and the large deadweight characteristic of glass mold, the general heavy-duty manipulator feeding device is designed; second, according to the demands of plasma welding process and with the employment of feeding dolly and pallet, the circulating device at the furnace bottom is designed, through which the function that the glass goes into and out of the furnace body is realized; Third, for the high-temperature work-pieces from the furnace, the feeding and charging devices which can stably convey high-temperature work-pieces are designed.

3. Key parts of the seven devices are checked, and according to the calculation results, each of the device structures is modified and perfected. Moreover, SolidWorks is employed for 3D modeling of the production line, and the engineering drawings are plotted, which lay the foundation for the subsequent improvement, the future test run and the industrial application of the plasma welding automatic production line of the glass mold designed in this paper.

Key words: glass mold, plasma welding, automatic production line, manipulator, automatic feeding

目录

1、绪论 1

1.1选题背景与意义 1

1.2国内外发展概况 1

1.2.1玻璃模具等离子焊的发展概况 2

1.2.2等离子焊接自动生产线的发展概况 3

1.2.3机械手的发展概况 4

1.3主要研究内容及论文结构 5

2、玻璃模具等离子焊接自动生产线总体方案设计 7

2.1上料机械手的总体方案设计 7

2.1.1机械手的型式 8

2.1.2上料机械手方案设计 9

2.2上料装置的总体方案设计 14

2.3炉底循环装置的总体方案设计 14

2.4炉体的总体方案设计 15

2.5送料装置的总体方案设计 16

2.6工作台的总体方案设计 17

2.7下料装置的总体方案设计 18

2.8本章小结 19

3、玻璃模具等离子焊接自动生产线的参数计算 20

3.1上料机械手的参数计算 20

3.1.1水平方向直线运动的驱动力计算 20

3.1.2竖直方向直线运动的驱动力计算 23

3.1.3回转运动的驱动力矩计算 24

3.1.4机械手的校核计算 26

3.2生产线外循环的参数计算 29

3.1.1外循环电机的选择 29

3.1.2链条和链轮的选择 30

3.3本章小结 32

4、 结论与展望 33

4.1工作总结 33

4.2研究展望 33

致谢 34

参考文献………………………………………………………………………………………35

玻璃模具等离子焊接自动生产线外循环

及机械手上料装置设计

1、绪论

1.1选题背景与意义

玻璃模具是玻璃制品重要的成型工具，模具质量直接影响其使用寿命、玻璃制品的外观和生产成本^[2]。我国是一个模具制造大国，随着经济的迅猛发展，模具产品的市场需求年平均增长速度超过13% ，近年模具的市场需求增速尤为明显，目前我国模具生产产量位列世界前列，模具生产及其下游产品制造已成为国内重要产业，模具产业的发展对我国工业的发展具有举足轻重的地位，对我国经济的发展起着重要作用^[6]。当前我国国民经济健康、快速发展，给模具行业带来快速发展的良机^[16]。模具行业的发展有其自身发展规律，目前模具行业发展的总体趋势是高精度、自动化、机器人化以及智能化^[3]。

与此同时，玻璃模具作为模具产品中的重要产品之一，其生产过程的高效化、高质化、自动化以及节能环保等问题的解决已经迫在眉睫。然而长期以来，玻璃模具等离子焊接工艺却没得到相应发展，并且自动化水平较低，已严重限制了该行业发展^[7]。作为玻璃模具生产关键技术之一的等离子焊接工艺以其独有的特点和优越性在行业中得到广泛应用^[1]，然而该焊接工艺却普遍采用传统的手工操作单工位等离子焊机的方法实现，直接导致产品质量一致性无法得到保证且存在生产效率低下、操作人员工作环境恶劣、劳动强度大、高温热害异常严重、能源浪费以及存在安全风险等一系列问题，这一系列问题已经成为等离子焊接工艺发展的瓶颈问题，严重限制了模具行业的发展^[7]。

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