Operating Procedures and Methods for Tool Grinders

Tool grinders are indispensable auxiliary equipment for metal cutting operations, used to sharpen various metal cutting tools. As metal cutting technology continues to advance, metal cutting machine tools are also constantly innovating, which in turn calls for new types of cutting tools—and this, in turn, places ever-new demands on tool grinding processes.

　　 Tool grinder It is an indispensable auxiliary device for metal cutting operations, used for grinding various metal cutting tools. As metal cutting technology continues to advance, metal cutting machine tools are also constantly innovating, which in turn calls for new cutting tools—and this, in turn, places ever-new demands on tool grinding processes.

　　In the machine tool industry, the history of tool grinder manufacturing is remarkably young. Over the past century and more of grinding machine production, the manufacture of tool grinders has long been taken seriously. However, in the last three decades, with the advancement of industry and scientific technology, the production of modular tool grinders has rapidly developed. Not only semi-automatic and automatic tool grinders but also CNC tool grinders have begun to be widely adopted.

　　Tool grinders are grinding machines specifically designed for tool manufacturing and tool sharpening. These include tool grinders, edge-grinding machines for drills, edge-grinding machines for broaches, and tool curve-grinding machines. They are widely used in tool factories and tool workshops within machine shops. First, determine the diameter of the milling cutter. If you're going to sharpen an 8 mm end mill, select an 8 mm collet and then securely clamp the milling cutter onto the 50D sleeve. When setting the angle, slightly tilt the milling cutter sleeve by about 4° (the bottom rake angle of the milling cutter should be between 2° and 6°).

　　Begin by grinding the bottom surface. If you have a milling cutter, align it with the grinding wheel. After completing the cutting edge, proceed to grind the bevel of the milling cutter’s bottom surface—grind one edge first, then sequentially switch to the next edge. Next, grind the center relief angle of the milling cutter: swing the sleeve to approximately 10°, then grind the center relief angle of each milling cutter blade. Proceed to adjust the second clearance angle of the milling cutter by grinding its side edges—push the sleeve onto the helical groove of the milling cutter, align it with the grinding wheel, and grind the helical side of the milling cutter. Follow the steps outlined above. Tool grinder The method for sharpening end mills can keep your milling cutters in pristine condition and effectively address the issue of dull milling cutters.

　　The installation and maintenance of technical equipment and electrical appliances must be carried out by qualified professionals holding electrical operation certificates, who shall take appropriate safety precautions. Before powering on the machine tool, verify that the voltage and frequency indicated on the motor nameplate match those of the power supply. Each contact pin on the machine tool’s power plug and socket must be securely fastened and free from looseness or poor contact. Do not misuse electrical wires; do not pull power cords directly into sockets. Instead, keep wires away from high temperatures, greasy surfaces, and sharp edges. If any malfunction or unusual noise is detected, immediately unplug the power cord, turn off the main switch located on the left side of the machine tool’s spindle housing, and then proceed with inspection and repair.

　　Do not leave the machine running unattended—always stop it and turn it off before leaving. When the external power supply is disconnected, be sure to press the red button; otherwise, the machine will continue to run automatically even when no one is around. Keep the work area clean and tidy, and avoid working in damp, cluttered, or poorly lit environments. Do not use this machine in flammable or explosive areas. Keep children and visitors away from the machine to prevent various safety hazards. Never exceed the machine’s maximum cutting capacity to avoid potential risks. Wear appropriate clothing—avoid loose-fitting garments and jewelry. If you’re wearing gloves or have long hair, secure your hair with a hair clip before putting on your hat to prevent it from getting caught in the machine and causing injury.

　　 Tool grinding The workpiece should be securely fastened; do not hold the workpiece yourself, so that both hands can be used to operate the machine tool. Keep the guide rail surfaces clean and prevent sand and dust from entering and damaging the rails. Do not operate the machine when you are fatigued, under the influence of alcohol, or under the effects of anesthesia.