ISO 2772:2019 pdf free
ISO 2772:2019 pdf free.Test conditions for box type vertical drilling machines – Testing of the accuracy
To apply this document, reference shall be made to ISO 230-1, especially for the installation of the machine before testing, the warming up of spindles and other moving components, description of measuring methods and recommended accuracy of the test equipment.
Where the test concerned is in compliance with the specifications of ISO 230-1, a reference to the corresponding subclause of ISO 230-1 is shown before the instructions in the “Observations” block of the tests described in Clauses 5 and 6.
The sequence in which the tests are presented in this document in no way defines the practical order of testing. In order to make the mounting of instruments or gauging easier, tests may be performed in any order.
When testing a machine, it is not always necessary or possible to carry out all the tests described in this document. When the tests are required for acceptance purposes, it is up to the user to choose, in agreement with the supplier/ manufacturer, the relevant tests relating to the components and/or the properties of the machine which are of interest. These tests are to be clearly stated when ordering a machine. A simple reference to this document for the acceptance tests, without specifying the tests to be carried out or without agreement on the relevant expenses, cannot be considered as an agreement between manufacturer/supplier and user.
Measuring instruments indicated in the tests described below are only examples. Other instruments capable of measuring the same quantities and having the same, or a smaller, measurement uncertainty may be used. Reference shall be made to ISO 230-1:2012, Clause 5, which indicates the relationship between measurement uncertainties and the tolerances.
When establishing the tolerance for a measuring length different from that given in this document (see ISO 230-1:2012, 4.1), it shall be taken into consideration that the minimum value of tolerance is 0,010 mm.ISO 2772 pdf free download.
