ISO INTERNATIONAL STANDARD 7988 First edition 1988-11-01 INTERNATIONALORGANIZATIONFOR STANDARDIZATION ORGANISATION INTERNATIONALE DE NORMALISATION MEXKAYHAPOAHAA OPTAHM3AUMR O CTAHAAPTM3ALMM Woodworking machines - Double-end tenoning machines - Nomenclature and acceptance conditions Machines a bois -- Machines doubles a tenonner -- Nomenclature et conditions de reception Reference number ISO 7988 : 1988 (E) Not for Resale ISO 7988 : 1988 (E) 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. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. 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. International Standard ISO 7988 was prepared by Technical Committee ISO/TC 39, Machine tools. Annex A of this International Standard is for information only. International Organization for Standardization, 1988 ? Printed in Switzerland king permited without license from IHS Not for Resale INTERNATIONAL STANDARD ISO 7988 : 1988 (E) Woodworking machines - Double-end tenoning machines - Nomenclature and acceptance conditions 1 Scope Iso 230-1 : 1986, Acceptance code for machine tools Part 1: Geometric accuracy of machines operating under This International Standard specifies the nomenclature ap- no-load or finishing conditions. propriate to each part of the machine and, with reference to Iso 230-1, the geometrical and practical tests for double-end Preliminary remarks tenoning machines, and gives the corresponding permissible deviations which apply to machines of general purpose use and In this International Standard all dimensions and permiss- normal accuracy. ible deviations are expressed in millimetres. NOTE - In addition to terms used in the three official ISO languages 3.2 To apply this International Standard, reference should be (English, French and Russian), this International Standard gives the made to ISO 230-1, especially for installation of the machine equivalent terms in the German, Spanish, Italian and Swedish before testing, the warming up of the main spindle and other languages; these are published under the responsibility of the member bodies for Germany, F.R. (DIN), Spain (AENOR), Italy (UNI) and moving parts, and the description of the measuring methods. Sweden (SiS). However, only the terms given in the official languages The measuring instruments shall not permit measurement can be considered as ISO terms. errors over 1/3 of the checked tolerances. This International Standard deals only with the verification of 3.3 The sequence in which the geometrical tests are given is the accuracy of the machine. It does not apply to the testing of related to the sub-assemblies of the machine, and this in no way defines the practical order of testing. In order to make the running of the machine (vibrations, abnormal noises, stick- slip motion of the components, etc.), nor to its characteristics mounting of instruments and gauging easier, tests may be (speeds,feeds, etc.) which should generally be checked before applied in any order. the accuracy is tested. When inspecting a machine, it is not always possible or 3.4 This International Standard applies to those machines necessary to carry out all the tests given in this International designated by the number 82.2