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 In machine tools, gauges play a crucial role in ensuring precision, accuracy, and quality in the manufacturing process. Gauges are measurement devices used to verify the dimensions of machined parts, ensuring they meet the required specifications. They are employed at various stages of the manufacturing process, including during setup, production, and final inspection.

Machine tool gauges come in different types and are designed to measure specific features of machined components. Some common types of gauges used in machine tools include:

Plug Gauges: Plug gauges, also known as pin gauges or plug taps, are used to measure the size and tolerance of holes or bores. They consist of a cylindrical pin with a specific diameter, which is inserted into the hole to check its size and ensure it falls within the acceptable range.

Ring Gauges: Ring gauges, also called snap gauges or thread gauges, are used to measure the size and tolerance of external features like shafts or threads. They consist of a cylindrical ring with a specific diameter or thread profile, into which the machined component is fitted to verify its dimensions.

Depth Gauges: Depth gauges are used to measure the depth of holes, slots, or grooves accurately. They typically consist of a graduated rod or blade with a reference base that is placed on the surface of the part, allowing the measurement of the depth from the reference point to the bottom of the feature.

Height Gauges: Height gauges, also known as surface height gauges or vernier height gauges, are used to measure the vertical distance or height of a component. They feature a flat base, an upright column, and a measuring arm that can be moved up and down. The arm is positioned on the surface being measured, and the height is read from a scale or digital display.

Thread Gauges: Thread gauges are specifically designed to measure the pitch diameter, thread angle, and other parameters of screw threads. They come in different types, including ring gauges, plug gauges, and thread pitch gauges, which help ensure the correct thread profile and fit.

Machine tool gauges are typically manufactured with high precision and accuracy, often adhering to specific industry standards or customer requirements. They are made from materials such as tool steel, tungsten carbide, or ceramic, which offer durability and resistance to wear.

Gauges are critical tools for quality control and process validation in the machine tool industry. They help machine operators, toolmakers, and inspectors verify the dimensions of machined components, ensuring they meet the desired specifications. By using gauges at various stages of the manufacturing process, companies can maintain consistency, reduce rejects, and deliver products that meet the highest quality standards.