Clamps

Once a workpiece is located it is necessary to press it against the locating surfaces and hold it there against the forces acting upon it.

numerous types of clamps have been developed and it is sometimes difficult to choose between two types when designing a specific tool. Simple workpiece or complex workpiece must full fill all four requirements.

1. Workpiece must be held rigidly while the cutting tools are in operation
2. time required for loading or unloading the tool must be as short as possible(quicker in acting)
3. When subjected to vibration chatter or heavy pressure the clamping must be positive
4. the clamp must not damage the workpiece.