Transcription of UNIT 14 DESIGN OF MACHINE STRUCTURES Structures …
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UNIT 14 DESIGN OF MACHINE STRUCTURES Structures …
33 DESIGN of MACHINE StructuresUNIT 14 DESIGN OF MACHINE STRUCTURES Structure Introduction Objectives Functions of MACHINE Tool Structure DESIGN Criteria for MACHINE Tool Structure DESIGN of Beds DESIGN of Columns DESIGN of Housing Summary Key Words INTRODUCTION MACHINE tool consists of MACHINE tool structure, bed, column, housings. These are the base of MACHINE tool on which the guideways, spindle, carriage, etc. are mounted. These elements must able to withstand at higher permissible load. These elements are discussed in detail in the following section. Objectives After studying this unit, you should be able to understand functions of MACHINE tool structure and the DESIGN criteria for selection of material for slideways, the DESIGN of bed, the DESIGN of column, and the DESIGN of housing. FUNCTIONS OF MACHINE TOOL STRUCTURE MACHINE tool structure consists of bed, base, columns, box type housings, overarms, carriages, tables etc.
Machine tool structure consists of bed, base, columns, box type housings, overarms, carriages, tables etc. The structures are divided into three categories according to their functions : Category 1 ... Plano-milling and slotting machines. 2 Open top closed profile bed. These are used in grinding machines.
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