Introduction To Gauge Blocks In The Machining Industry

DALIAN, China - Jan. 12, 2025 - PRLog -- In the machining industry, gauge blocks, also known as block gauges, are precision measuring tools used to transfer dimensional values, calibrate measuring tools, and directly measure part dimensions. They are the benchmark for length measurement in technical measurements and are used to transfer dimensions from standard lengths to parts.

The following is a detailed introduction to the types, categories, and applications of gauge blocks:

Types

The types of gauge blocks are mainly distinguished by their appearance and cross-sectional dimensions:

1. Rectangular gauge blocks: This is the most common type, with a rectangular cross-section, used in various precision measurement fields.
2. Square gauge blocks: The cross-section is square and suitable for specific measurement needs.
3. Cylindrical gauge blocks: The cross-section is circular and is used to measure the size of circular holes or cylindrical workpieces.

Accuracy level

The accuracy of gauge blocks is divided into different levels according to the accuracy of their working dimensions (center length) and the accuracy of the plane parallelism of the two measuring surfaces. Common levels include K, 0, 1, 2, and 3, among which K and 0 gauge blocks have the highest accuracy and are usually used for national metrology standards and precision measurements.

1. K-grade: the highest precision, mainly used in benchmark metrology laboratories.
2. Grade 0: used for high-precision testing.
3. Grade 1: suitable for general precision machining.
4. Grades 2 and 3: suitable for routine measurements in daily production.

Application

Dimension transfer:

The gauge block is the most basic measuring tool for controlling dimensions in the machine manufacturing industry, and is the medium for transferring dimensions from standard length to parts. It ensures that the dimensions of various finished products in mechanical processing can be traced back to the length benchmark.

Calibration and measurement:

In the machining industry, gauge blocks are often used as standard parts for calibrating other measuring tools to ensure the accuracy and reliability of measuring tools.

At the same time, gauge blocks can also be used directly to measure the dimensions of parts to ensure that the dimensions of parts meet design requirements.

As Standard Parts:

When measuring with the relative method, gauge blocks can be used as standard parts to adjust the zero position of the instrument, thereby providing more accurate measurement results.

Auxiliary Measurement:

In order to expand the application range of gauge blocks and facilitate various measurement tasks, a set of gauge block accessories can also be used for auxiliary measurement. These accessories can help engineers complete measurement tasks more efficiently.
The Whole Post at https://www.sansmachining.com/introduction-to-gauge-block...