'C' clamps and toolmaker's clamp
. purpose of using clamps . requirements of the clamping devices .Features and uses of 'C' clamps .features of toolmaker's clamps Purpose of using clamps Clamps are different types are used for preventing the movement of work Requirements of clamping devices Should be able to manipulate for easy loading. Should provide the required clamping force. Should be capable of locking with minimum movement. Should accommodate a range of sizes of jobs. A typical clamping device, employing a screw and nut to provide the clamping force. 'C' clamps These clamps are in the shape of a 'C'. The 'C' clamp has its body forged or cast. One end of the clamp is machined flat. The other end is drilled and threaded to accommodate a screw rod which is operated by a handle. The screw rod carries a swivel pad which is free to revolve. The clamp is hardened and the face is serrated. These clamps are used to hold work, an angle plate or a drill press table,and also, for holdi...