Marble/granite machine tool components have various important uses and advantages in machine tools. The following is a specific introduction:

Solution for Lishi Machine Tool Components

——The perfect combination of natural stone and precision machining

1、 Overview of the Plan

Marble machine tool components, such as workbenches, bed bodies, and columns, are made of natural granite or artificially synthesized stone. With their high rigidity, low coefficient of expansion, and corrosion resistance, they have become an ideal choice for precision machine tools, such as grinders and coordinate boring machines. This plan focuses on material selection, manufacturing processes, and full lifecycle management to ensure that the machine tool maintains a long-term precision of ± 0.005mm/m level.

2、 Core advantages

1. Breakthrough in material performance

• Natural granite (Jinan Green/Mount Taishan Green):

Hardness HS70-80, compressive strength 245-254N/mm ²;

The coefficient of thermal expansion is 8 × 10 ⁻⁶/℃, which is only one-third of that of cast iron;

Water absorption rate<0.13%, excellent corrosion resistance.

Typical application scenarios

1. Precision grinding machine worktable:

2. Three coordinate measuring machine body:

3. Semiconductor lithography machine base:

purpose

Workbench: Used to support workpieces and provide stable flat support for machining, it is the basic platform for machine tools to perform cutting, grinding, and other machining operations.

Bed: As the main supporting structure of the machine tool, it installs and fixes various components of the machine tool, such as guide rails, columns, spindle boxes, etc., to ensure the relative positional accuracy between each component.

Column: Supports components such as the spindle box, providing vertical guidance and support for the movement of the tool, ensuring the positional accuracy and stability of the tool during the machining process.

advantage

Good precision retention: Marble and granite have extremely low coefficients of thermal expansion, are less affected by temperature changes, and can maintain high precision for a long time, which is conducive to ensuring the dimensional accuracy and geometric tolerances of processed parts.

• Strong rigidity: The material has high compressive strength, can withstand large cutting forces and workpiece weight, is not easily deformed, can ensure the stability of the machine tool during processing, and improve processing quality.

Excellent shock absorption performance: The internal structure is dense and uniform, with good vibration absorption, which can effectively absorb the vibration generated by the machine tool during operation, reduce the impact of vibration on machining accuracy, especially suitable for high-precision machining.