Gear processing is an important part of machinery manufacturing, and the advantages and disadvantages of its processing methods directly affect the accuracy, life and performance of gears. This article will introduce several common gear machining methods, including gear milling, grinding, hobbing, and shaping.
1. Milling gears. Gear milling is a commonly used gear processing method, the basic principle of which is to fix the tooth blank on the fixture of the machine tool and cut it through a high-speed rotating milling cutter. Milling gear has the advantages of high machining accuracy and high efficiency, and is suitable for machining straight and helical cylindrical gears. The key to gear milling is to select the right milling cutter and adjust the cutting parameters to ensure the accuracy and surface quality of the gear.
2. Grinding teeth. Gear grinding is a precision gear machining method whose basic principle is to grind the tooth surface with a grinding stone and slurry to obtain a precise tooth profile and surface roughness. The machining accuracy of the grinding gear is high, and the surface is suitable for the processing of high-precision gears. The key to gear grinding is to select the right grinding stone and fluid, as well as to adjust the grinding parameters to ensure the accuracy and surface quality of the gear.
3. Gear hobbing. Gear hobbing is an efficient and economical gear machining method, the basic principle of which is to cut the tooth blank through the rotational motion of the hob. Gear hobbing has the advantages of high processing efficiency and low cost, and is suitable for mass production of medium-precision gears. The key to gear hobbing is to select the appropriate hob and adjust the cutting parameters to ensure the accuracy and surface quality of the gear.
Fourth, gear shaping. Gear shaping is a commonly used gear machining method, the basic principle of which is to cut the tooth blank through the reciprocating motion of the inserting tool. Gear shaping has the advantages of high machining accuracy and suitable for the processing of various gears. The key to gear shaping is to select the right insertion tool and adjust the cutting parameters to ensure the accuracy and surface quality of the gear.
The above are several common gear processing methods, each of which has its own characteristics and scope of application. In actual production, the appropriate processing method should be selected according to the requirements of gear accuracy, material, batch size, etc., to ensure the quality and performance of the gear.