IS 2063-1988

百检网 2021-08-04
标准号:IS 2063-1988
发布日期:1990/8/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围:The aim of this part of ISO 230 is to standardize methods of testing the geometric accuracy' of machine tools, operating either under no-load or under finishing conditions, by means of geometrical and practical tests.A machine tool is a power-driven machine, not portable by hand while working, which can be used for machining metal, wood, etc., by removal of chips or swarf or by plastic defor-mation.This part of ISO 230 generally relates only to machines which cut metal by removing chips or swarf. In particular, special methods necessary for testing wood-working machines and machines which operate by plastic deformation are not included.By geometrical checks is meant the checking of dimensions, forms and positions of components, as well as the checking of their displacement relative to one another. They comprise all the operations which affect the components of the machine (surface flatness, coincidence and intersection of axes, parallelism and perpendicularity of straight lines to straight lines, of flat surfaces to flat surfaces or of each to the other). They concern only sizes, forms positions and relative movements which may affect the ac-curacy of working of the machine.By practical test is meant the machining of test pieces appropriate to the fundamental purposes for which the machine has been designed, and having predetermined limits and tolerances.NOTE - This part of ISO 230 relates only to the checking of the accuracy itself. In particular, it deals neither with the checking of the running of the machine tool (vibrations, abnormal noises, stick-slip mo-tion of components, etc., nor with the checking of characteristics (speeds, feeds), as these checks should normally be carried out before checking the accuracy of the machine tool.After general considerations on definitions, test methods, use of checking instruments and tolerances, this part of ISO 230 deals more thoroughly with preliminary checking operations, practical tests and geometrical checks, and some special checks. An an-nex deals with the accuracy of instruments used for testing machine tools.NOTE — This part of ISO 230 gives essentially a recommended selection of test methods by means of geometrical checks. Attention is drawn to the fact that, while geometrical checks are explained at length, the prac-tical tests are not, as the problems of the inspection of components regarding position, dimensions and forms are property dealt with in most technical books on metrology.

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