Experience shows that to improve the processing efficiency of CNC machine tools, it is not enough to simply "select" the CNC machine tool fixtures. We also need to work hard on the "good use" of CNC machine tool fixtures. Here are three commonly used methods:
multi-station method
The basic principle of the multi-station method: by clamping multiple workpieces at one time, the purpose of shortening the unit clamping time and extending the effective cutting time of the tool is achieved. A multi-station fixture is a fixture with multiple positioning and clamping positions.
With the development of CNC machine tools and users' needs to improve production efficiency, multi-station fixtures are now used more and more. Multi-station design is becoming more and more common in the structural design of hydraulic/pneumatic clamps, modular clamps, electro-permanent magnet clamps and precision combination flat-nose pliers.
Group use
Placing the same clamps on the same workbench can also achieve the purpose of "multi-station" clamping. The fixtures involved in this method should generally undergo "standardized design and high-precision manufacturing", otherwise it will be difficult to meet the requirements of CNC machine tool processing.
Use in groups can make full use of the stroke of the CNC machine tool, which is beneficial to the balanced wear of the machine tool transmission components; at the same time, the relevant fixtures can be used independently to clamp multiple pieces, or can be used in combination to clamp large-sized workpieces.
Partial quick change
The local quick change method is to quickly change the function or use of the fixture by quickly replacing the CNC machine tool fixture parts (positioning elements, clamping elements, tool setting elements and guide elements). For example: quick-change combination flat-nose pliers can change the clamping function by quickly changing the jaws, such as changing from clamping square materials to clamping bars; you can also change the clamping method by quickly changing the clamping elements, such as Convert from manual to hydraulic clamping. The local quick change method greatly shortens the time for replacing and adjusting fixtures, and has obvious advantages in small batch production.
