High Precision Ultra-high Speed Chip Mounter Beam Design And Dynamic Characterstic Research

With the continuous development of science and technology, Modern equipment automation degree is more and more high。At present, Advanced electronics assembly has been generally adopted the surface mount technology (SMT), chip mounter is the most key SMT production line equipment。Our chip mounters mostly are imported from abroad, top and middle grade chip mounters basically are foreign monopoly。 According to this situation, We are developing a high-precision ultra-high speed, long service life and low cost chip mounter, in order to break the foreign monopoly and fill the domestic blank, Provide comprehensive innovative solutions for the enterprisein the process of production with quality、efficiency、cost。This paper is a domestic one high precision ultra-high speed chip mounter beam as the research object, Through the motion law of beam and beam to chip mounter precision impact study, Design and optimize the structure of the beam, Make the beam get the chip mounter required dynamic performance, The main research content is as follows:1. Classify the existing chip mounter structure, At present chip mounter structure basically has the following kinds:turret, arch frame, compound, and large parallel system。And analyze and compare the chip mounter structure characteristics, Choose the appropriate x-y axis motion structure and driving mode.2. Analyze the movement law of the beam in the work and high precision ultra-high speed chip mounter to the specific requirements of the beam.3. Design the specific structure of beam, preliminary selected several beam structure (W, O, rice font and V), And use the Pro/Engineer5.0to model several structure of3d. In addition, preliminarily analyze materials of the beam and processing technology (Steel, aluminum alloy, beryllium aluminium alloy)4. Use ANSYS Workbench to analyze dynamic characteristics of the beam, including modal analysis and transient dynamic analysis.Modal analysis is mainly in order to observe the beam would happen resonance in the work process。Transient dynamics analysis is mainly in order to observe the deformation of the beam while the beam in athletic process and beam after stop to chip mounter feeding。5. Optimize the reinforcing plate of the beam and on both ends of the connection mode, According to the optimization beam, do the dynamic analysis,Make sure that the beam can achieve high precision ultra-high speed chip mounter dynamic performance requirements.