ISO 3070-2-2016 PDF

Full title and description

Machine tools — Test conditions for testing the accuracy of boring and milling machines with horizontal spindle — Part 2: Machines with movable column along the X-axis (floor type). This international standard specifies geometric tests, spindle tests and NC positioning checks (with applicable tolerances) for floor-type horizontal-spindle boring and milling machines with a movable column along the X-axis.

Abstract

ISO 3070-2:2016 defines standardized test conditions and tolerance guidance for verifying geometric accuracy, spindle characteristics and numerical-control positioning repeatability of horizontal-spindle boring and milling machines whose column moves along the X-axis (floor type). The standard references and is used in conjunction with ISO 230 series requirements and specifies tests for common accessory heads; it addresses only accuracy verification (not operational checks such as vibration, noise or speed/feed performance).

General information

• Status: Published / Confirmed.
• Publication date: August 2016 (corrected versions published December 2016).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 25.080.20 (Machine tools — boring and milling machines).
• Edition / version: Edition 4 (ISO 3070-2:2016).
• Number of pages: 53.

Scope

This part of ISO 3070 applies to horizontal-spindle boring and milling machines with a movable column along the X-axis (floor type) and to the following typical axes: column movement on the bed (X), vertical movement of the spindle head (Y), axial ram movement (Z), axial boring-spindle movement (W) and, where fitted, table movements/rotation (R, B). It specifies geometric tests (straightness, squareness, parallelism, angular errors), spindle tests and NC positioning/repeatability tests and gives applicable tolerances for general-purpose, normal-accuracy machines. The standard does not cover operational characteristics such as vibration, abnormal noise or feed/speed performance.

Key topics and requirements

• Reference to ISO 230 series (ISO 230-1, ISO 230-2, ISO 230-7) for general test principles and methods.
• Geometric tests: straightness, flatness, squareness, parallelism and angular deviation checks between axes.
• Spindle tests: axial and radial spindle runout, spindle alignment and related checks.
• NC positioning and repeatability tests for linear and rotary axes (including procedures and acceptable tolerances for general-purpose machines).
• Test conditions and methods for accessory and indexable heads (with cross-reference to ISO 17543‑1) and additional provisions in annexes for facing heads.
• Specified test setups, measuring instruments and environmental considerations necessary to obtain reproducible accuracy measurements.

Typical use and users

Used by machine-tool manufacturers, independent test and calibration laboratories, OEM quality and inspection teams, acceptance-test engineers, research institutions and standards committees to verify and document the geometric and positioning accuracy of floor-type horizontal-spindle boring and milling machines at factory acceptance, on-site acceptance or after repair/refurbishment.

Related standards

ISO 3070-1 (other machine types / general requirements), ISO 230-1, ISO 230-2 and ISO 230-7 (test codes for machine tools), ISO 17543‑1 (test conditions for universal heads and spindles), and earlier editions of the ISO 3070 series (superseded editions). National adoptions (EN/SS/other national versions) may also exist for regional application.

Keywords

machine tools, boring machine, milling machine, horizontal spindle, movable column, floor type, accuracy testing, geometric tests, spindle tests, NC positioning, ISO 3070-2:2016

FAQ

Q: What is this standard?

A: ISO 3070-2:2016 is an international standard that specifies test conditions and tolerance guidance for checking the accuracy of horizontal-spindle boring and milling machines with a movable column along the X-axis (floor-type machines).

Q: What does it cover?

A: It covers geometric accuracy tests (straightness, squareness, parallelism, angular errors), spindle tests, and numerical-control positioning and repeatability checks, together with applicable tolerances for general-purpose, normal-accuracy machines. It does not cover operational performance tests such as vibration or speed/feed characteristics.

Q: Who typically uses it?

A: Machine-tool manufacturers, acceptance-test engineers, calibration and metrology labs, quality managers, maintenance teams and purchasing/inspection departments use this standard for factory acceptance, on-site acceptance, and post-repair accuracy verification.

Q: Is it current or superseded?

A: ISO 3070-2:2016 is the current published edition (published August 2016 with corrected versions in December 2016) and replaced earlier editions (for example the 2007 version). The 2016 edition has been confirmed in review cycles since publication.

Q: Is it part of a series?

A: Yes. ISO 3070 is a multi-part series addressing test conditions for boring and milling machines with horizontal spindle; Part 2 covers floor-type machines with movable column along the X-axis, while other parts address different machine configurations or related test methods.

Q: What are the key keywords?

A: Machine tools, boring, milling, horizontal spindle, movable column, floor type, accuracy testing, geometric tests, spindle runout, NC positioning.