Chucks Value for CNC Machine ToolsChuck is a mechanical system used on machine tools such as lathe machines to clamp workpieces. A machine instrument accessory that utilizes the uniformly distributed radial movement of the movable claws on the chuck body to clamp and position the workpiece. A chuck body, mobile jaw, and jaw drive mechanism are normally composed of Chuck. The chuck body's minimum diameter is 65mm, and the mean diameter is 1500mm. To move through the workpiece or bar, there is a through-hole in the middle. On the back, there is a cylindrical or short conical structure which is attached directly or through the flange to the end of the machine tool spindle. Chuck is normally mounted on the lathe, the cylindrical grinder and the internal grinder and may also be used for CNC milling machines and drilling machines with different indexing devices.
Chuck has become an important tool in order to make the processing of machine tools more accurate and stable. There are lots of types of lathe chucks., six jaw chucks, and special chucks on the basis of the chuck claw number. The manual chuck, pneumatic chuck, hydraulic chuck, electric chuck, and mechanical chuck can be separated on the basis of the use of electricity. The hollow chuck and the strong chuck can be split depending on the structure. In fact, there is a wide gap between imported chuck and heat treatment and detailed process treatment, the key problem of chuck production. Moreover, there is a huge number of consumers in the domestic market and fierce competition, so that producers have to regulate the quality of the goods as much as possible and trade the attractiveness of the market for a lower price. This leads to some common problems with domestic chucks, such as poor stability, short service life, retention time of short repeat accuracy, and so on.
Due to its strict procedure, most of the imported chuck ensures repeated clamping precision and long service life for the stable chuck. Lubrication is especially necessary in order to guarantee the good accuracy of the lathe chuck after long-term usage. Incorrect or inadequate lubrication can result in abnormal operation, weakening of clamping force, poor precision of clamping, abnormal wear, and low pressure seizure, so the chuck must be properly lubricated. First, at least once a day, add molybdenum disulfide grease (the color is black) and push the grease into the chuck nozzle until the grease spills over the claw surface or the inner hole of the chuck (the inner hole protection sleeve and the connecting nut). However, if high or large amounts of water-based cutting oil are rotated by the chuck in the processing process, further lubrication is required, which must be calculated according to different conditions. Secondly, the chuck body and slide surface must be washed at the end of the operation with an air gun or similar equipment. Then, to keep the sliding surface of the claw clean and lubricated, the chuck should be disassembled and cleaned at least every 6 months in order to increase the chuck's service life. In addition, to stop the internal rust of the chuck and reduce the clamping force due to the rust of the chuck, cutting oil with an anti-rust effect is used so that the workpiece can not be clamped. Equipped with a suitable chuck to make CNC machine tools more efficient, manufacturers need to choose to play a better role depending on the actual situation of their goods.