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 ?
Chuck D: These are inevitable destinations for artists like Eminem.
He informed Chuck that he was going to work a Junior High game at 4 p.
Normadean Gibson, who was then a member of Chuck Davis Dance Company and is now Director of Programs of the Davis organization in Durham, North Carolina, says, "The idea was to bring people of all races, creeds, and colors under one roof to see that African American dance was half traditional and half contemporary-usually a fusion of techniques.
Chuck is survived by his loving wife of 43 years, Jo Ann Overturf, son and daughter-in-law, John Charles, & Susan Overturf, two daughters, Kimberly Stratford & Kandis Coleman, two brothers Archie "Art" and Gordon Overturf, and four sisters, Irene Overturf, Vineta Sullens, Shirley Eickmeyer and Louise Chapman.
Chuck Norris - he never turns his back on people and I am going to marry him
color) Chuck Liddell, left, and Tito Ortiz meet tonight in a rematch of a 2004 fight, which was won by Liddell.
Police label anyone attacking Chuck Norris as a Cede 45-11.
Chuck was a mentor as much as he was a man, a native Virginian, a brunette, a Chermside .
The son of political activists, Chuck says he remembers the impact that his parents' ideals had on him.
Chuck will serve as vice president for three years.
Moreover, the stock would have been nearly as liquid as cash, and would have allowed Chuck to determine when he would recognize the gain from the liquidation of his partnership interest.
As the 120-odd portraits in Chuck Close's full-scale retrospective found their places on the walls of New York's Museum of Modern Art this February, Brooks Adams visited the installation in progress and talked with the artist and the show's curator Robert Storr about the work, its development, and the issues surrounding its presentation.