chuck


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chuck

1
a. a device that holds a workpiece in a lathe or tool in a drill, having a number of adjustable jaws geared to move in unison to centralize the workpiece or tool
b. a similar device having independently adjustable jaws for holding an unsymmetrical workpiece

chuck

2 Canadian W coast
1. a large body of water
2. short for saltchuck (the sea)

Chuck

 

a device for mounting and securing workpieces or cutting tools in metal-cutting or woodcutting machines. Chucks may be mechanical, pneumatic, electromagnetic, or hydraulic in operation. The most commonly used is the mechanical self-centering three-jawed lathe chuck, designed for holding regularly shaped workpieces (primarily bodies of revolution) and centering them on the lathe spindle axis. The gripping action of self-centering chucks results from rotation of a spiral-grooved plate in which the bottom surfaces of the chuck jaws are seated, causing a simultaneous, radial movement of the jaws.

A four-jawed lathe chuck is used for clamping irregularly shaped workpieces; its jaws travel radially and independently of each other. Fast-acting collet chucks are used for gripping small-diameter cylindrical workpieces on turret lathes and semiautomatic machines. Pneumatic and hydraulic chucks permit rapid gripping of the workpiece and freeing of the machined part. Electromagnetic chucks are used mainly for securing thin parts that can be deformed when clamped in chucks of other types.

N. A. SHCHEMELEV

chuck

[chək]
(design engineering)
A device for holding a component of an instrument rigid, usually by means of adjustable jaws or set screws, such as the workpiece in a metalworking or woodworking machine, or the stylus or needle of a phonograph pickup.
(metallurgy)
A small bar between flask bars to secure the sand in the upper box (cope) of a flask.

chuck

chuck
A device with adjustable jaws used for centering and holding a cutting bit, drill bit, etc.
References in periodicals archive ?
The post Film review: Chuck *** appeared first on Cyprus Mail .
First assigned to the 8th Infantry Division in Germany, Chuck served in almost every division within that office: legal assistance, Trial Defense Service, and military justice.
When someone adds Chuck as a friend on Facebook, you are now getting exposure to all that person's friends as well.
Graduating from high school in the late 1940s, Chuck decided the family's 80-acre farm wasn't large enough to support two families, so he went to work for a neighbor.
I almost felt as though I were cheating, showing up there without Chuck.
Please join us in sending Chuck and his family peace and love.
Teenage Mutant Ninja Turtles is based en a true story: Chuck Norris once swallowed a turtle, and when he crapped it out, the turtle was six feet tall and had learned karate.
A highly intelligent and talented student, Chuck D attended Adelphi University in Long Island, where he put his artistic skills to use by designing posters for the burgeoning hip-hop scene.
While athletic directing at Pitcairn, PA, in the 1940s, Chuck ran into Red parked in a car with picnic basket and a Thermos of coffee.
At any performance of the African American Dance Ensemble, artistic director, Chuck Davis, a supertall, joyous presence in vivid robes, entices you into the experience of the bantaba.
For those of us who grew up during the golden years of the TV Westerns, as well as newer generations seeing these classic "oaters" for the first time on cable reruns, one of the longest-running programs was The Rifleman, starring Chuck Connors.