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Introduction and analysis of several common grinders

Aug 24, 2020

Grinding machines have the most variety among all types of metal cutting machine tools. The main types are cylindrical grinders, internal grinders, surface grinders, centerless grinders, tool grinders, etc. Cylindrical grinders are the most widely used, capable of processing various cylindrical and conical outer surfaces and shaft shoulder end surfaces. The universal cylindrical grinder also has an internal grinding attachment, which can grind the inner hole and the inner and outer cones with a large taper. However, the degree of automation of cylindrical grinders is relatively low, and is only suitable for small and medium batches of single-piece production and repair work. The grinding wheel spindle speed of the internal grinder is very high, which can grind the surface of cylindrical and conical inner holes. Ordinary internal grinders are only suitable for single piece and small batch production. Automatic and semi-automatic internal grinders can perform automatic measurement during processing in addition to the work cycle, and are mostly used in mass production. The workpiece of the surface grinder is generally clamped on the worktable, or fixed on the electromagnetic worktable by electromagnetic suction, and then the surface of the workpiece is ground by the periphery or end of the grinding wheel; the centerless grinder usually refers to the centerless cylindrical grinder, that is, the workpiece is not used The center or the chuck is centered and supported, and the ground surface of the workpiece is used as the positioning surface. The workpiece is located between the grinding wheel and the guide wheel and is supported by a pallet. This kind of grinding machine has high production efficiency, is easy to realize automation, and is versatile. In mass production.

Tool grinders are grinders specially used for tool manufacturing and tool sharpening. There are universal tool grinders, drill sharpening machines, broach sharpening grinders, tool curve grinders, etc., which are mostly used in the tool workshops of tool manufacturers and machinery manufacturers. The abrasive belt grinder uses a fast-moving abrasive belt as the abrasive tool. The workpiece is supported by the conveyor belt. The efficiency is several times higher than other grinders, and the power consumption is only a fraction of other grinders. It is mainly used for processing large-size plates and heat-resistant Difficult to process materials and mass-produced flat parts, etc. Specialized grinders are grinders that specialize in grinding certain types of parts, such as crankshafts, camshafts, spline shafts, guide rails, vanes, bearing raceways, gears and threads. In addition to the above categories, there are many types of honing machines, such as honing machines, grinders, coordinate grinders and billet grinders.

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