ACCURACY ANALYSIS FOR DESIGN OF HORIZONTAL SPINDLE ATTACHMENT FOR A VERTICAL MILLING MACHINE (VMC 500)

• Main Author: Hadi Prabaswara, Tobias
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik (Rekayasa, enjinering dan kegiatan berkaitan)
• Online Access: https://digilib.itb.ac.id/gdl/view/70234
• Institution: Institut Teknologi Bandung

Production process is an essential part of manufacturing, it has been around for a very long time and has been developing ever since. One of those major developments is the creation of milling machines, one of which is vertical milling center (VMC). This thesis will focus on the innovation, design, and accuracy analysis of an additional attachment of horizontal spindle onto a VMC machine, which is a VMC 500. The analysis will consist the usage of stack tolerance analysis in the worst-case criteria, to calculate the accuracy of the design. The analyzed accuracy is limited to parallelity of the attachment’s spindle to the VMC’s table surface based on ISO 1701-2 G11. There hasn’t been any development in regards to an additional horizontal spindle attachment on VMC machines. This design aims to do so and take a step further in the world of production process. This will help to cut different planes by using VMC 500 machines. The accuracy analysis will show the quality of design and reduce the production cost should it be realized. The design of the modular attachment is modelled through the usage of SolidWorks software.The subject that is taken into account is the existing VMC 500 that resides in Production Laboratory in Institut Teknologi Bandung. The result of this thesis shows that the parallelity of its horizontal spindle axis from the attachment to the VMC’s table movement is 0.018 mm, which satisfies the tolerance limit that has been stated by ISO 1701-2 G11, which is 0.02 mm for every 300 mm of length that has been converted into 0.01875 mm for every 225 mm.