2423 International Standard (ISO INTERNATIONAL ORGANIZATION FOR STANDARDIZATION MEKAYHAPOAHAR OPTAHW3ALMA NO CTAHAAPTM3ALWW+ORGANISATION INTERNATIONALE DE NORMALISATION Acceptance conditions for radial drilling machines with the arm adjustable in height - Testing of accuracy Conditions de reception des machines apercerradialesa brasmobile en hauteur-Controledela precision Secondedition-1982-02-01 ISO 2423-1982 (E) UDC 621.952.2-187 Ref.No.ISO2423-1982(E) Descriptors : machine tools, drilling machines (tools), tests, test conditions, accuracy, verifying Price based on 9 pages Foreword ISO(theInternational Organization for Standardization)is a worldwidefederation of national standards institutes (ISO member bodies). The work of developing Inter- national Standards is carried out through ISo technical committees. Every member body interested inasubjectforwhichatechnical committeehasbeen set uphasthe right tobe represented on that committee. International organizations, governmental 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. International StandardISO2423 was developed byTechnical Committee ISO/TC 39, Machinetools. This second edition was submitted directly to the ISo Council, in accordance with clause 5.10.1 of part 1 of the Directives for the technical work of ISO. It cancels and replaces the first edition (i.e. ISo 2423-1974), which had been approved by the memberbodies ofthefollowing countries: Belgium Ireland Sweden Chile Italy Switzerland Czechoslovakia Netherlands Thailand Egypt, Arab Rep. of Poland Turkey France Portugal USA Germany, F.R. Romania USSR Hungary South Africa, Rep. of The member bodies of the following countries had expressed disapproval of the docu- ment ontechnical grounds : India ueder United Kingdom International Organizationfor Standardization,1982 Printed in Switzerland INTERNATIONALSTANDARD ISO2423-1982(E) Acceptance conditions for radial drilling machines swith the arm adjustable in height - Testing of accuracy 1 Scopeandfieldofapplication before testing,warming up of spindles and other moving parts, description of measuring methods and recommended accuracy This International Standard describes, with reference to of testing equipment. ISO/R 230, both geometrical and practical tests on general pur- pose and normal accuracy radial dilling machines with the arm 3.3 The sequence in which the geometrical tests are given is adjustable in height, and gives corresponding permissible related to the sub-assemblies of the machine, and this in no deviations which apply. way defines the practical order of testing. In order to make the It deals only with the verification of accuracy of the machine. It mounting of instruments or gauging easier, tests may be ap- does not apply to the testing of the running of the machine plied in any order. (vibrations, abnormal noises, stick-slipmotion of components, etc.), or to characteristics (such as speeds, feeds, etc.)which 3.4 When inspecting a machine, it is not always necessary to should generally be checked before testing accuracy. carry out all the tests given in this International Standard.It is up to the user to choose, in agreement with the manufacturer, those tests relating to the properties which are of interest to 2 Reference him, but these tests are to be clearly stated when ordering a machine. ISO/R230,Machinetooltestcode. 3.5 When establishing a tolerance for a measuring range dif- 3 Preliminary remarks ferent from that given in this International Standard (see clause 2.311 in ISO/R 230), it should be taken into consideration that the minimum value of tolerance is 0,01 mm (0.000 4 in). 3.1 In this International Standard, all the dimensions and per- missible deviations are expressed in milimetres and in inches. 3.6 Unless otherwise specified,geometrical tests are carried 3.2 To apply this International Standard, reference sh