GB/T 17421.10-2021Test code for machine tools - Part 10: Determination of the measuring performance of probing systems of numerically controlled machine tools (English PDF)

1 Scope

This part of GB/T 17421 specifies the measurability of a contact detection system (discrete point detection mode) assembled with a CNC machine tool.

Test procedures that can be evaluated.

This section does not contain other types of detection systems, such as those used in scanning mode or non-contact detection systems. For coordinate measuring machine

The performance evaluation of the machine tool is also not within the scope of this section. These performances involve the problem of tracking ability and are obviously affected by the geometric accuracy of the machine tool.

The detection of machine tool detection system specified in this section can also be determined in accordance with GB/T 16857.2 and GB/T 16857.5.

The contact detection system of CNC machine tools is used in the processing process as follows.

---Check whether the workpiece is installed correctly before processing;

--- Positioning and/or calibration of the workpiece;

---After processing, the workpiece is still being measured on the machine tool;

---Positioning and orientation measurement of machine tool rotation axis;

---Setting and measurement of cutting tools (tool radius, length and offset);

---Determination of tool wear.

Note 1.This section is mainly for machining centers, for other types of machine tools, such as turning and grinding centers, will be involved in later versions of this section.

Note 2.This section does not involve non-contact measurement (for example. optical probe), but it will be involved in later versions of this section.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article

Pieces. For undated reference documents, the latest version (including all amendments) is applicable to this document.

GB/T 16857.5-2017 Geometric Technical Specification for Products (GPS) Acceptance Test and Re-inspection Test of Coordinate Measuring Machine Part 5

Sub. Coordinate measuring machine (ISO 10360-5.2010, IDT) using single-probe or multi-probe contact detection system

ISO 230-1 General rules for inspection of machine tools Part 1.Geometric accuracy of machine tools under no load or finishing conditions (Testcodeforma- chinetools-Part 1.Geometricaccuracyofmachinesoperatingunderno-loadorquasi-staticconditions)

ISO 230-2 General Rules for Inspection of Machine Tools Part 2.Determination of Positioning Accuracy and Repeatable Positioning Accuracy of CNC Axis (Testcodefor machinetools-Part 2.Determinationofaccuracyandrepeatabilityofpositioningofnumericalycon- troledaxes)

ISO 230-3.2007 General Rules for Inspection of Machine Tools Part 3.Determination of Thermal Effects (Testcodeformachinetools-Part 3.

Determinationofthermaleffects)

3 Terms and definitions

The following terms and definitions apply to this document.

Note. In the measurement mode, the machine tool is similar to a coordinate measuring machine. Therefore, the definition used for the test performance of the coordinate measuring machine measurement system can also be used for machine tools. Of course

However, not all machine tool users are familiar with the use of coordinate measuring machines. The definitions provided in this section are mainly for machine tools to ensure that they are not related to coordinate measurement.

Any confusion arises from the definition of the measuring machine.

GB 15760 | GB/T 17421.2 | GB/T 24343 | GB/T 17421.1 | GB/T 17421.7 | GB/T 17421.4 | […]