高速主轴动平衡技术研究现状

针对高速主轴在运行过程中产生的振动对零件加工精度、表面质量等造成的破坏问题,对离线动平衡技术、在线动平衡技术及其在线动平衡装置的发展情况进行了研究与总结,对高速主轴在线动平衡装置的动平衡原理和在应用过程中存在的优点与不足进行了分析与归纳,对高速主轴在线动平衡技术及其动平衡装置的未来研究方向进行了展望。研究结果表明,广泛应用的混合式在线动平衡技术以及电机驱动式、喷液式和电磁驱动式3种最具代表性的在线动平衡装置是未来发展趋势;该技术重点是提高动平衡效率、快速响应能力、精度、适应性和耐用性;混合式在线动平衡技术及其高性能在线装置在高速主轴动态平衡方面具有广阔前景。     

高转速零件的动平衡研究

此篇以动平衡的技术特点作为切入依据,结合动平衡最新的技术特点,主要从在线检测的角度分析和总结了在线动平衡装置的动平衡原理和高速高转速零件及其应用过程中的优势和劣势,对高速高转速零件在线动平衡技术及其动平衡装置的未来研究方向进行了展望。结果表明,广泛应用的混合式在线动平衡技术和三种最具代表性的电机驱动、液体喷射和电磁驱动在线动平衡装置是未来的发展趋势。技术重点是提高动平衡效率、快速响应能力、精度、适应性和耐久性。     

超高速磨削中的砂轮自动平衡技术

砂轮在线自动平衡装置是超高速磨削中的关键技术，是保证超高速磨削加工顺利进行的必要条件。本文简述了砂轮在线自动平衡的基本原理，分析了液体式、气体式、机械式自动平衡系统的工作原理和各自的性能特点，并介绍了德国Hofmann公司生产的一种砂轮液体式自动平衡装置。     

机床主轴在线动平衡装置现状分析研究

综合国内外机床主轴在线动平衡技术,对动平衡装置的相关研究进行系统分析,找出现有装置的不足,概括机床主轴在线动平衡装置设计的几点要求.     

两种新型电磁式在线自动平衡头

介绍一种可单向转动的电磁式在线自动平衡头，分析了这种平衡头的不足，并在此基础上设计出能使平衡盘相对转轴正反两个方面转动的在线动平衡装置。     

高速主轴在线动平衡技术综述

综述了目前常用的几种主轴动平衡技术和方法,着重阐述了各种采用平衡头技术的在线动平衡装置的原理、结构特点、国内外的研究和应用现状及其优缺点,同时介绍了几种在实际生产中得到广泛应用的采用平衡头技术的在线动平衡装置,并针对高速主轴动平衡的应用指出了主轴在线动平衡技术的发展方向及今后需要解决的问题.     

砂轮在线自动平衡系统的研究现状及其发展趋势

在磨削过程中，由于砂轮损耗，砂轮自身的质量分布不断发生变化，致使砂轮的平衡状态不断发生变化。需要一种砂轮在线自动平衡装置，对磨削过程中砂轮的平衡状态进行实时监测和调整。着重介绍了近年来国内外砂轮在线自动平衡系统研究开发的进展情况及其发展趋势。     

电磁滑环式在线动平衡系统特性分析与实验

为了测试一种电磁滑环式在线动平衡装置的平衡特性,搭建了实验平台,采用影响系数法进行在线动平衡实验研究。主要从实验平台本身的振动特性、主轴转速对平衡效果的影响以及试加配重的角度对平衡效果的影响3个方面进行了分析研究,得到了实验平台和主轴转速对在线动平衡系统的影响,以及试加配重位置的选择方式,为高速主轴双面动平衡和模态分析的研究打下基础。     

新型电磁式自动平衡头控制决策研究

介绍一种新型电磁式在线自动平衡装置（简称“自动平衡头”）,给出了平衡准则,针对只能单方向移动平衡质量的自动平衡头,提出了一种快速随机寻优的控制策略,与普通随机寻优相比较,平衡盘移动迅速,准确、缩短了动平衡时间。     

新型电磁式自动平衡头控制决策的研究

介绍一种新型电磁式在线自动平衡装置（简称“自动平衡头”）,给出了平衡准则,针对只能单方向移动平衡质量的自动平衡头,提出了一种快速随机寻优的控制策略,与普通随机寻优相比较,平衡盘移动迅速,准确,缩短了动平衡时间。     

全自动硅片装片机产能分析

近年来随着光伏产业发展,自动化设备在太阳能电池片生产线上得到广泛的运用.在工艺设备产能不断增长的背景下,对自动化设备的产能要求也越来越高.本文简单介绍了太阳能自动化设备全自动硅片装片机的结构及工作流程.在对全自动硅片装片机工作流程分析的基础上提出了在不改变设备结构的基础上,大幅提高产能的有效解决方案.     

Production preparation and numerical control in PCB assembly

In this article, we analyze numerical control problems arising in a component insertion line for printed circuit board mounting. Such a line consists of a number of fully automated placement machines, connected by an automated, carrierless conveyor system. At each machine, the placement device consists of an arm equipped with a number of placement heads. Each head may serve certain component types; there is some freedom in the choice of equipment for each head. Components are supplied to each machine by tape feeders (each containing components of only one type) which are placed at certain feeder positions along the machine. Before actually operating such a line, a careful production preparation phase has to be completed, specifying for each printed circuit board type the exact way in which such a board should be mounted. Problems arising in this production preparation phase include: the choice of heads to be mounted on the placement arm of each machine, the choice of components to be placed at each machine (workload balancing), an assignment of feeders to feeder positions on each machine, clustering of components to be placed in one pick-and-place move, and the sequencing of component insertions at one machine. Formulations and solutions for all these problems are given and numerical results for some industrial examples are given. The numerical control system developed has been tested and implemented and has resulted in software, which is in use at several sites of Philips' Electronics.     

Ant colony optimization for disassembly sequencing with multiple objectives

Product disassembly takes place in remanufacturing, recycling, and disposal. The disassembly line is the best choice for automated disassembly, so it is essential that it be designed and balanced to work efficiently. The multi-objective disassembly line balancing problem seeks to find a disassembly sequence which provides a feasible disassembly sequence, minimizes the number of workstations, minimizes idle time, balances the line (ensures similar idle times at each workstation), as well as addressing other disassembly-specific concerns. However, finding the optimal balance is computationally intensive due to exponential growth, with exhaustive search quickly becoming prohibitively large. In this paper, an ant colony optimization metaheuristic is presented for obtaining optimal or near-optimal solutions to the disassembly line balancing problem. Examples are considered to illustrate implementation of the methodology. Conclusions drawn include the consistent generation of near-optimal solutions, the ability to preserve precedence, the superior speed of the metaheuristic, and its practicality due to its ease of implementation.     

A new multi-objective ant colony algorithm for solving the disassembly line balancing problem

The disassembly line is the best choice for automated disassembly of disposal products. Therefore, disassembly line should be designed and balanced so that it can work as efficiently as possible. In this paper, a mathematical model for the multi-objective disassembly line balancing problem is formalized firstly. Then, a novel multi-objective ant colony optimization (MOACO) algorithm is proposed for solving this multi-objective optimization problem. Taking into account the problem constraints, a solution construction mechanism based on the method of tasks assignment is utilized in the algorithm. Additionally, niche technology is used to embed in the updating operation to search the Pareto optimal solutions. Moreover, in order to find the Pareto optimal set, the MOACO algorithm uses the concept of Pareto dominance to dynamically filter the obtained non-dominated solution set. To validate the performance of algorithm, the proposed algorithm is measured over published results obtained from single-objective optimization approaches and compared with multi-objective ACO algorithm based on uniform design. The experimental results show that the proposed MOACO is well suited to multi-objective optimization in disassembly line balancing.     

闪频式现场整机动平衡仪的开发与应用

闪频式现场整体动平衡仪是一种通过测幅进行整机动平衡的装置，本文首先介绍了测相测幅整体动平衡的方法与原理，然后围绕如何提取不平衡振动的幅值与相位详细阐述仪器的硬件设计，最后通过实验证明仪器的可靠性。     

考虑流水线平衡的混合装配线排序

针对传统平准化模型的缺陷，考虑流水线平衡对混合装配线排序的影响，以流水线平衡得到的工作站时间为基础，按照产品产出时间来衡量物流的平准化排序，建立了基于流水线平衡影响的平准化排序模型，并对一个实例进行了数值分析。提出的平准化模型克服了传统混合装配线排序研究中的不足，把流水线平衡和产品排序有机结合起来，更加符合问题的实际背景。     

Optimization of workcell layouts in a mixed-model assembly line environment

Mixed-model assembly lines enable automotive manufacturers to build different vehicles using the same equipment and facility. They allow a more rapid response to changes in customer demand. However, the increased production flexibility creates new challenges regarding assembly line planning and balancing. Part of this problem is how to allocate stock within the workcells so that non-value added operations, such as walking and waiting, are minimized. This paper addresses the issue of workstation layout optimization. Different formulations can be used to minimize non-value added time depending on the level of sophistication desired. We present three different optimization formulations and give an example of an optimized workstation layout.     

Branch-and-bound algorithms for simple assembly line balancing problem

In this paper, exact algorithms for solving the simple assembly line balancing type I problem are presented. The proposed algorithms consist of a constructive and two destructive algorithms. Several well-known lower-bound computational methods are also applied in these algorithms. Computational experiments were carried out to test the performance of the proposed algorithms based on a set of benchmark problem instances. The computational results show that the algorithms proposed in this paper are efficient in solving the simple assembly line balancing benchmark problem instances. Moreover, a problem instance whose optimal solution had previously been unknown is solved by one of the proposed algorithms.     

基于虚拟仪器的微速差双转子系统动平衡测试装置的研制

介绍了基于虚拟仪器的微速差双转子系统动平衡测试装置的构成、基本原理以及软硬件的设计方法。