3655 International Standard (ISO INTERNATIONAL ORGANIZATION FOR STANDARDIZATIONOMEXAYHAPOAHAA OPTAHW3ALMA O CTAHAAPTW3ALMWORGANISATION INTERNATIONALE DE NORMALISATION Acceptance conditions for vertical turning and boring lathes with one or two columns and a single fixed or movable table - General introduction and testing of the accuracy Conditions de reception des tours verticaux a un ou deux montants, a un seul plateau fixe ou deplacable -- Introduction generale et controle de la precision Second edition -- 1986-05-01 UDC 621.914.4 Ref. No. ISO 3655-1986 (E) Descriptors : machine tools, lathes, vertical boring- and turning lathes, definitions, tests, testing conditions, dimensional measurements. accuracy. Price based on 17 pages Not for Resale Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through iso technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, govern- mental and non-governmental, in liaison with isO, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the ISO Council. They are approved in accordance with ISO procedures requiring at least 75 % approval by the member bodies voting. Machine tools. (ISO 3655/0-1976 and ISO 3655/1-1986), of which it constitutes a minor revision. Users should note that all International Standards undergo revision from time to time and that any reference made herein to any other International Standard implies its latest edition, unless otherwise stated. ? International Organization for Standardization, 1986 Printed in Switzerland Copyright Internatinal Organization for Standardization ed without license from IHS Not for Resale ISO 3655-1986 (E) INTERNATIONAL STANDARD Acceptance conditions for vertical turning and boring lathes with one or two columns and a single fixed or movable table - General introduction and testing of the accuracy Scope and field of application 3.2 Facing operations This International Standard defines machining operations on A vertical turning and boring lathe can also be used for machin- vertical turning and boring lathes with one or two columns and ing flat surfaces, perpendicular to the axis of rotation of the a single fixed or movable table. It defines and summarizes the table. This operation is called facing. different types of machines and establishes a glossary for the various types of machine tool. It indicates, with reference to ISO 230/1, both geometrical and practical tests for such ver- 3.3 Threading operations tical lathes, and gives the corresponding permissible deviations for general purpose use machines of normal accuracy. Threads of given pitches are machined on external or internal cylindrical surfaces by means of special thread form cutting NOTE - - In addition to terms used in the three official iso languages tools. (English, French and Russian), this International Standard gives the equivalent terms in German, Italian and Swedish; these have been included at the request of Technical Committee ISO/TC 39 and are 3.4 Scroll cutting operations published under the responsibility of the member bodies for Germany F.R. (DIN), Italy (UNI) and Sweden (SIS). However, only the terms Scroll (Archimedian spiral) cutting is the machining of spiral grooves in a surface perpendicular to the axis of rotation of the It deals only with the verification of accuracy of the machine. It table. does not apply to the running of the machine (vibrations, abnormal noises, stick-slip motion of components, etc.) or to machine characteristics (speeds, feeds, etc.), which should generally be checked before testing accuracy. 4 Definiti