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2. Parallel (engineering) - Wikipedia

   en.wikipedia.org/wiki/Parallel_(engineering)

   The most common use is to support work when it is in a vise or clamped to the machine bed. If a workpiece is too small to be machined in a vise without it being in contact with all three faces of the vice - parallels can be used either side to give clearance from the vise, and to give support from underneath to eliminate the workpiece being ...

3. Drawbar (machine tool) - Wikipedia

   en.wikipedia.org/wiki/Drawbar_(machine_tool)

   The drawbar pull is an important component that allows the milling machine to keep the tool in place while it’s being used. The force from the drawbar pull supplied to the tool has to be just right because not enough force would cause the tool to wobble leading to inaccuracy, and too much force would apply a lot of stress leading to shorter tool life.

4. Chuck (engineering) - Wikipedia

   en.wikipedia.org/wiki/Chuck_(engineering)

   It is also possible nowadays to build CNC chucks in which the position and clamping pressure of each jaw can be precisely controlled with CNC, via closed-loop positioning and load monitoring. In essence, each jaw is one independent CNC axis, a machine slide with a leadscrew, and all four or six of them can act in concert with each other ...

5. Collet - Wikipedia

   en.wikipedia.org/wiki/Collet

   Several machine collets (top and centre) and a dismantled pin chuck (below). Generally, a collet chuck, [3] considered as a unit, consists of a tapered receiving sleeve (sometimes integral with the machine spindle), the collet proper (usually made of spring steel) which is inserted into the receiving sleeve, and (often) a cap that screws over the collet, clamping it via another taper.

6. Step clamp - Wikipedia

   en.wikipedia.org/wiki/Step_clamp

   A step clamp is a type of serrated-edged clamp used in conjunction with step blocks in machining to fix an object in place during milling operations. They are available from numerous manufacturers such as Dinli , [ 1 ] Misumi , [ 2 ] etc.

7. Vacuum table - Wikipedia

   en.wikipedia.org/wiki/Vacuum_table

   A vacuum table consists of a typically flat rigid surface with small holes to move air from under a workpiece, as to apply varying vacuum from between the desired workpiece and table to maintain a clamping force greater than that needed to machine a part, generally, in a mill, lathe, EDM (Electro-Discharge Machine), pantograph or any other ...