When rough turning, it is necessary to choose cutting tools with high strength and good durability to meet the requirements of large back cutting and large feed during rough turning.
When precision machining, it is necessary to choose cutting tools with high precision and good durability to ensure the required machining accuracy.
To reduce tool changing time and facilitate tool alignment, machine clamped knives and machine clamped blades should be used as much as possible.
Reasonable selection of fixtures
1. Try to use universal fixtures to clamp workpieces and avoid using specialized fixtures;
2. The part positioning reference coincides to reduce positioning errors.
Determine the processing route
The machining route refers to the movement trajectory and direction of the tool relative to the part during the machining process of a CNC machine tool.
1. It should be able to ensure machining accuracy and surface roughness requirements;
2. The processing route should be shortened as much as possible to reduce the tool idle travel time.
The connection between processing route and processing allowance
At present, before the widespread use of CNC lathes, it is generally necessary to allocate excessive allowances on the blank, especially those containing forged or cast hard skin layers, to be processed on ordinary lathes. If it is necessary to use a CNC lathe for machining, attention should be paid to the flexible arrangement of the program.
Key points for fixture installation
At present, the connection between the hydraulic chuck and the hydraulic clamping cylinder is achieved through a pull rod. The key points for clamping the hydraulic chuck are as follows: first, use a handle to remove the nut on the hydraulic cylinder, remove the pull tube, and pull it out from the rear end of the spindle. Then, use a handle to remove the chuck fixing screw to remove the chuck.
