Machine tool quality appraisal

A machine tool is a machine used to process workpieces. It uses some special tools, such as milling cutters, drills, thread cutters, etc., to cut the workpiece. The working principle of the machine tool is to fix the workpiece on the workbench and process it by moving the tool. There are many types of machine tools, including lathes, milling machines, drilling machines, etc.
In machine tool quality appraisal cases, Zhongke Testing can provide machine tool quality appraisal services.

1. According to the degree of performance, machine tools can be divided into:
① General machine tools, such as cylindrical grinders, horizontal lathes and radial drilling machines, etc. These lathes have a wide range of processes and can machine various types of parts in different processes.
② Special machine tools such as screw milling machines and shovel tooth lathes have a narrow processing technology range. Generally speaking, they can only specifically design and manufacture certain parts or processes.
③Special machine tools, such as drilling and boring combined machine tools, have a narrow process range. It is usually the design and manufacture of a specific part or a specific process, such as mass-produced car model parts and components.
2. According to the working accuracy, machine tools can be divided into ordinary machine tools, precision machine tools and high-precision machine tools.
① Ordinary milling machines, boring machines, drilling machines, boring machines, etc. are all ordinary machine tools.
② Various other precision lathes such as threading machine tools, gear processing machine tools, grinders, etc. are precision lathes.
③ High-precision machine tools: including coordinate boring machines, gear grinders, high-precision gear hobbing machines and other high-precision machine tools.

GB/T 40808-2021 Machine tool environmental assessment
GB/T 17421-2016 General rules for machine tool inspection
GB/T 5291-2022 Electrical discharge forming machine tool accuracy inspection
GB/T 17421-2021 General rules for inspection of machine tools
GB/T 6576-2002 Machine tool lubrication system
GB 12557-2010 General rules for safety of woodworking machine tools
GB/T 41093-2021 Safety of machine tools Lathes
GB/T 17162-1997 Machine tool speed and feed

was entrusted by the client to conduct appraisal and analysis on whether the hardness of the guide rail surface and work surface of the machine tool casting involved in the case met the relevant standards.
identification analysis results: The
expert group analyzed the relevant information, on-site investigation and test results of the "machine tool" involved in the case, and reached the following opinions after discussion: The low hardness of the
machine tool worktable plane can easily cause damage to the worktable such as burring and fluffing, affecting its processing accuracy and reducing the durability of the worktable.