A Certain Type of Design and Production of Special Fixtures

The need for benchmarks to determine the positioning of the workpiece,and then select the positioning element and the workpiece clamping,clamping in the choice of the workpiece,the paper clamping with two different methods,namely: coarse milling of plane with the platen clamping mechanism is a screw,coarse face milling around when using a pneumatic clamping mechanism,the two methods in the production has its own strengths and weaknesses,but are widely used in production.Then calculate the required cutting force and clamping the workpiece clamping force,which is the focus of the design and difficulty.