Views: 6 Author: Site Editor Publish Time: 2021-06-26 Origin: Site
Some work pieces, because of their size and shape, cannot be held and machined between lathe centers. Lather chucks are used extensively for holding work for machining operations. The most commonly used lathe chucks are the three jaw universal, four jaw independent, and the collects chuck.
A chuck is a type of clamp used to hold an object in a specific position, widely used in the CNC machining factory, in drilling and milling, chucks hold the rotating tools, while in the turning process, various lathe chuck types are used for fixing the workpiece. Many chucks have jaws that are tightened up to hold the tool or part. Machinists understand the term three-jaw chuck” as a self-centering three-jaw chuck, which also refers to universal chuck, this type is best suited to grip round and hexagonal pieces when requiring very fast, reasonably accurate centering.
A 4-jaw chuck is a great, almost essential, accessory for any serious lathe worker. While it lacks the self-centering convenience of the 3-jaw chuck, it has other capabilities. Grip rectangular and other non-cylindrical shapes for turning or facing. Form rectangular-shaped objects.Precisely center cylindrical stock to within the limits of the lathe's accuracy. Hold stock off-center for turning cams or drilling off-center holes.
The collect chuck is the most accurate chuck and is used for high-precision work and small tools. Spring collects are available to hold round, square, or hexagon-shaped workpieces. An adaptor is filled into the taper of the headstock spindle, and a hollow drawbar having an internal thread is instead in the opposite end of the headstock spindle. As the handwheel and drawbar are revolved, it draws the collet into the tapered adaptor, causing the collet to tighten on the workpieces.
The most commonly used lathe chuck including 3-jaw and 4-jaw. What’s the difference between the four jaw chuck and three-jaw chuck?