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1、 Reference number ISO 3070-2:2007(E) ISO 2007 INTERNATIONAL STANDARD ISO 3070-2 Third edition 2007-12-15 Machine tools Test conditions for testing the accuracy of boring and milling machines with horizontal spindle Part 2: Machines with movable column and fixed table Machines-outils Conditions dessa
2、i pour le contrle de lexactitude des machines alser et fraiser broche horizontale Partie 2: Machines montant mobile et table fixe Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 01/01/2
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8、blished in Switzerland ii ISO 2007 All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 01/01/2008 22:04:15 MSTNo reproduction or networking permitted without license fro
9、m IHS -,-,- ISO 3070-2:2007(E) ISO 2007 All rights reserved iii Contents Page Foreword iv Introduction v 1 Scope 1 2 Normative references1 3 Terminology and designation of axes.2 3.1 General2 3.2 Types of movement.2 4 Definition of the machining operations carried out on these machines3 4.1 Boring o
10、perations3 4.2 Milling operations3 5 Special remarks concerning particular elements.4 5.1 Spindle heads.4 5.2 Steady blocks.4 6 Preliminary remarks 4 6.1 Measuring units .4 6.2 Reference to ISO 230.5 6.3 Testing sequence.5 6.4 Tests to be performed.5 6.5 Measuring instruments .5 6.6 Machining tests5
11、 6.7 Software compensation 5 6.8 Minimum tolerance5 7 Geometric tests6 7.1 Straightness and angular deviations of linear axes.6 7.2 Squareness between coordinate axes.17 7.3 Fixed table independent of the machine.19 7.4 Boring spindle24 7.5 Milling spindle30 7.6 Ram .31 7.7 Integral facing head.35 7
12、.8 Radial facing slide movement (U axis)38 8 Machining tests40 9 Checking accuracy and repeatability of positioning by numerical control.45 10 Geometric accuracy of axes of rotation of tool-holding spindles51 Bibliography53 Copyright International Organization for Standardization Provided by IHS und
13、er license with ISO Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 01/01/2008 22:04:15 MSTNo reproduction or networking permitted without license from IHS -,-,- ISO 3070-2:2007(E) iv ISO 2007 All rights reserved Foreword ISO (the International Organization for Standardization) is
14、 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 represen
15、ted on that committee. International organizations, governmental 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. International Standards are dr
16、afted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International S
17、tandard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 3070-2 was prepar
18、ed by Technical Committee ISO/TC 39, Machine tools, Subcommittee SC 2, Test conditions for metal cutting machine tools. This third edition cancels and replaces ISO 3070-0:1982 and ISO 3070-3:1997, of which it constitutes a technical revision. ISO 3070 consists of the following parts, under the gener
19、al title Machine tools Test conditions for testing the accuracy of boring and milling machines with horizontal spindle: Part 1: Machines with fixed column and movable table Part 2: Machines with movable column and fixed table Part 3: Machines with movable column and movable table Copyright Internati
20、onal Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 01/01/2008 22:04:15 MSTNo reproduction or networking permitted without license from IHS -,-,- ISO 3070-2:2007(E) ISO 2007 All rights reserved v Introduction
21、 It is generally accepted that horizontal spindle boring and milling machines fall into three categories characterized by their particular configuration: a) machines with fixed column and movable table; b) machines with movable column and fixed table; c) machines with movable column and movable tabl
22、e. In the past, all these types of machines and associated terminology were described in ISO 3070-0:1982. The relevant accuracy tests were described in ISO 3070-2:1997, ISO 3070-3:1997, and ISO 3070-4:1998 respectively. However, ISO/TC 39/SC 2 decided to integrate the descriptions and the terminolog
23、y of these machines into appropriate parts of ISO 3070 describing the accuracy tests and to renumber the parts of this series accordingly. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale
24、, 01/01/2008 22:04:15 MSTNo reproduction or networking permitted without license from IHS -,-,- Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 01/01/2008 22:04:15 MSTNo reproduction or
25、 networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO 3070-2:2007(E) ISO 2007 All rights reserved 1 Machine tools Test conditions for testing the accuracy of boring and milling machines with horizontal spindle Part 2: Machines with movable column and fixed table 1 Scope Thi
26、s part of ISO 3070 specifies, with reference to ISO 230-1, ISO 230-2 and ISO 230-7 geometric tests, machining tests, spindle tests and tests for checking the accuracy and repeatability of positioning by numerical control of general purpose, normal accuracy, horizontal spindle boring and milling mach
27、ines having a movable column and fixed table. This part of ISO 3070 also specifies the applicable tolerances corresponding to these tests. This type of machine can be provided with spindle heads of different types, such as those with sliding boring spindle and milling spindle, sliding boring spindle
28、 and facing head, or ram or milling ram. This part of ISO 3070 concerns machines having movement of the column or column saddle on the bed (X axis), vertical movement of the spindle head (Y axis), movement of the boring spindle or ram (Z axis) and, possibly, a feed movement of radial facing slide in
29、 the facing head (U axis). Some machines also have an intermediate saddle with slideways between column and bed to achieve additional movement of the column parallel to the spindle axis (W axis). NOTE In ISO 3070-1, spindle ram movement is designated as the W axis. This part of ISO 3070 deals only w
30、ith the verification of the accuracy of the machine. It does not apply to the operational testing of the machine (e.g. vibration, abnormal noise, stick-slip motion of components) nor to machine characteristics (e.g. speeds, feeds), as such checks are generally carried out before testing the accuracy
31、. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 230-1:1996, Test cod
32、e for machine tools Part 1: Geometric accuracy of machines operating under no- load or finishing conditions ISO 230-2:2006, Test code for machine tools Part 2: Determination of accuracy and repeatability of positioning numerically controlled axes ISO 230-7:2006, Test code for machine tools Part 7: G
33、eometric accuracy of axes of rotation ISO 1101:2004, Geometrical Product Specifications (GPS) Geometrical tolerancing Tolerances of form, orientation, location and run-out Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/111111100
34、1, User=Japan, IHS Not for Resale, 01/01/2008 22:04:15 MSTNo reproduction or networking permitted without license from IHS -,-,- ISO 3070-2:2007(E) 2 ISO 2007 All rights reserved 3 Terminology and designation of axes 3.1 General A boring and milling machine is a machine tool in which the principal c
35、utting motion is the rotation of the cutting tool against the non-rotating workpiece and where the cutting energy is brought by the cutting tool rotation. The cutting movement is generated by the rotation of the spindle(s) and, possibly, of the facing head. 3.2 Types of movement The feed movements a
36、re as follows: a) transverse movements of the column on the bed; b) vertical movement of the spindle head; c) axial movement of the spindle; d) possible movement of radial facing slide in the facing head. It should be noted that the column may be mounted on slideways to achieve a small additional lo
37、ngitudinal feed movement of the column parallel with the spindle axis. Table 1 provides the nomenclature for various structural components of machines shown in Figure 1. Figure 1 shows a typical configuration of such machines. Table 1 Nomenclature (see Figure 1) Figure 1 ref. English French German 1
38、 bed banc Maschinenbett 2 column montant du chariot porte-broche Maschinenstnder 3 spindle head chariot porte-broche Spindelstock 4 column saddle tranard du montant Zwischenschlitten (fr den Spindelstock) 5 fixed table table fixe Aufspanntisch 6 spindle broche Spindel Copyright International Organiz
39、ation for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 01/01/2008 22:04:15 MSTNo reproduction or networking permitted without license from IHS -,-,- ISO 3070-2:2007(E) ISO 2007 All rights reserved 3 NOTE For components 1 to
40、 6, see Table 1. Figure 1 Machine with movable column and fixed table 4 Definition of the machining operations carried out on these machines 4.1 Boring operations Boring is a machining operation for generating holes of various sizes and geometries in which the principal cutting motion is the rotatio
41、n of a single-point cutting tool against the non-rotating workpiece and where the cutting energy is brought by the cutting tool rotation. Boring the diameter of cylindrical, conical, blind or through holes to the required size is achieved by using a boring bar to locate the cutting edge of the borin
42、g tool in a well defined position with respect to the axis average line of the boring spindle. 4.2 Milling operations Milling is a machining operation to generate non-axisymmetrical (non-rotational) surfaces of various geometries in which the principal cutting motion is the rotation of a cutting too
43、l with multiple cutting edges against the non-rotating workpiece, and where the cutting energy is brought by the cutting tool rotation. Milling operations mostly involve face milling or end milling. The tools are mounted either in the boring spindle taper (see Figure 2) or, as for face milling cutte
44、rs, on the milling spindle nose. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 01/01/2008 22:04:15 MSTNo reproduction or networking permitted without license from IHS -,-,- ISO 3070-2
45、:2007(E) 4 ISO 2007 All rights reserved 5 Special remarks concerning particular elements 5.1 Spindle heads Reference should be made to Figure 2 for examples of the various types of head. Related nomenclature is given in Table 2. Facing heads generally have a radial facing slide and are either integr
46、al or removable; the latter is considered an accessory. It should be noted that the integral facing head may not always be mounted onto the milling spindle and may have its own bearing independent from the main spindle bearings. Table 2 Nomenclature (see Figure 2) Figure 2 ref. English French German
47、 1 boring spindle broche alser Bohrspindel 2 milling spindle broche fraiser Frsspindel 3 facing head plateau surfacer Planscheibe 4 spindle head with facing head tte de broche avec plateau surfacer Spindelstock mit Planscheibe 5 ram coulisseau Traghlse a) Spindle head for boring and milling b) Spind
48、le head with facing head c) Spindle head with ram NOTE For elements 1 to 5, see Table 2. Figure 2 Types of spindle head 5.2 Steady blocks Due to the decreasing use of long boring bars, there is an increasing tendency to treat steady blocks as optional parts or auxiliary equipment. 6 Preliminary remarks 6.1 Measuring units In this part of ISO 3070, all linear dimensions, deviations and corresponding