ČeskyProgramming and manufacturing on CNC machines
Laboratory supervisor: Ing. Petr Keller, Ph.D.
Keywords: CNC machine tools, CNC programming, CAD/CAM systems, manufacturing simulation.
Principal goals and activities
The main activity of the laboratory is related to the issue of working on CNC machine tools. I.e., design and transfer of technological procedures to NC programs, preparation and adjustment of tools and the machines, debugging of the process, and final machining.
The laboratory is equipped with two modern, fully five-axis machining centres, the advantages of which include the possibility of machining shape complicated parts to a small number of clamping. In addition, the laboratory has a small teaching lathe on which basic set-up and programming skills can be trained. A so-called digital twin to this machine has been developed - essentially a computer simulator on which a range of skills can be trained without risk. Most of the operating habits can then be transferred to more complex machines.
The general focus of the laboratory
- teaching and training in programming and operation of CNC machines;
- design of technological procedures for the manufacture of specific parts by machining on CNC machines;
- creation of NC programs - using CAD/CAM systems and dialogue programming on CNC, exceptionally also manually;
- prototype manufacturing of more complex parts by machining on CNC machines.
Specific instruments and outcomes
Mazak Integrex 100-IV - multifunctional turning and milling five-axis machining centre. It is used to produce complex-shaped parts from rotating blanks clamped in a hydraulically operated three-jaw chuck integrated into the machine's main spindle. Turning, milling, drilling and special combined multi-purpose tools can be clamped in the tooling spindle thanks to the Capto C6 tool clamping system. The maximum material diameter is 120 mm, and the maximum length is approx. 400 mm (depending on machining technology and tools used).
| Range of axes [mm] | Tool head rotation [°] | Main spindle speed [rpm] | Tool speed [rpm] | Max. workpiece diameter [mm] | Tool magazine [pcs] | Control system
|
| -20/+390, ±70, ‑20/+550 | -30/+195 | 6 000 | 12 000 | 120 | 20 | Mazatrol Matrix |
Hermle C250 - five-axis milling centre with linear feeds in X, Y and Z axes connected to the tool movement, rotary table C placed on a symmetrically supported swivelling axis A for the possibility of machining complex shaped parts with maximum dimensions of approx. 300 x 300 x 300 mm. The machine has a polymer concrete frame for good machine stability.
| Range of axes [mm] | Rotary axes [°] | Spindle speed [rpm] | Max. table load [kg] | Table dimensions [mm] | Tool magazine [pcs] | Control system
|
| ±300, ‑285/+265, 100/550 | ±115, 360 | 15 000 | 300 | Ø450 x 360 | 30 | Heidenhain TNC 640 |
Emco E120P - two-axis CNC lathe, the primary use is mainly for teaching purposes and CNC machine programming training, maximal workpiece diameter is 40 mm, maximal length 100 mm.
EdgeCAM - CAD/CAM system to support programming of CNC machines with postprocessors for Mazak Integrex 100-IV, Emco E120P and laser cutting machine with Sinumerik 840D (educational multilicense);
hyperMILL - CAD/CAM system to support CNC machine programming with postprocessors for Mazak Integrex 100-IV and Hermle C 250 machines (educational multilicence).
Offer of technology and expertise:
- teaching issues in selected fields at TUL, professional training for companies;
- solving topics and preparing bachelor, diploma and dissertation theses;
- solving scientific and research projects;
- contracted research and collaboration with the industry (consultancy in the design of technology for manufacturing shape-complex components, training in programming and operation of CNC machines, etc.).
